On this webpage you will find my solutions to the fourteenth edition of "Engineering Mechanics: Statics" by R. C. Hibbeler. Here is a link to the book's page on amazon.com. If you find my work useful, please consider making a donation. Thank you.

Chapter 1: General Principles
Problem 1-1 Problem 1-4 Problem 1-7 Problem 1-10 Problem 1-13 Problem 1-16 Problem 1-19
Problem 1-2 Problem 1-5 Problem 1-8 Problem 1-11 Problem 1-14 Problem 1-17 Problem 1-20
Problem 1-3 Problem 1-6 Problem 1-9 Problem 1-12 Problem 1-15 Problem 1-18 Problem 1-21
Chapter 2: Force Vectors
Problem 2-1 Problem 2-11 Problem 2-21 Problem 2-31 Problem 2-41 Problem 2-51 Problem 2-61 Problem 2-71
Problem 2-2 Problem 2-12 Problem 2-22 Problem 2-32 Problem 2-42 Problem 2-52 Problem 2-62 Problem 2-72
Problem 2-3 Problem 2-13 Problem 2-23 Problem 2-33 Problem 2-43 Problem 2-53 Problem 2-63 Problem 2-73
Problem 2-4 Problem 2-14 Problem 2-24 Problem 2-34 Problem 2-44 Problem 2-54 Problem 2-64 Problem 2-74
Problem 2-5 Problem 2-15 Problem 2-25 Problem 2-35 Problem 2-45 Problem 2-55 Problem 2-65 Problem 2-75
Problem 2-6 Problem 2-16 Problem 2-26 Problem 2-36 Problem 2-46 Problem 2-56 Problem 2-66 Problem 2-76
Problem 2-7 Problem 2-17 Problem 2-27 Problem 2-37 Problem 2-47 Problem 2-57 Problem 2-67 Problem 2-77
Problem 2-8 Problem 2-18 Problem 2-28 Problem 2-38 Problem 2-48 Problem 2-58 Problem 2-68 Problem 2-78
Problem 2-9 Problem 2-19 Problem 2-29 Problem 2-39 Problem 2-49 Problem 2-59 Problem 2-69 Problem 2-79
Problem 2-10 Problem 2-20 Problem 2-30 Problem 2-40 Problem 2-50 Problem 2-60 Problem 2-70 Problem 2-80
Chapter 2: Force Vectors (cont'd)
Problem 2-81 Problem 2-90 Problem 2-99 Problem 2-108 Problem 2-117 Problem 2-126 Problem 2-135 Problem R2-5
Problem 2-82 Problem 2-91 Problem 2-100 Problem 2-109 Problem 2-118 Problem 2-127 Problem 2-136 Problem R2-6
Problem 2-83 Problem 2-92 Problem 2-101 Problem 2-110 Problem 2-119 Problem 2-128 Problem 2-137 Problem R2-7
Problem 2-84 Problem 2-93 Problem 2-102 Problem 2-111 Problem 2-120 Problem 2-129 Problem 2-138 Problem R2-8
Problem 2-85 Problem 2-94 Problem 2-103 Problem 2-112 Problem 2-121 Problem 2-130 Problem 2-139
Problem 2-86 Problem 2-95 Problem 2-104 Problem 2-113 Problem 2-122 Problem 2-131 Problem R2-1
Problem 2-87 Problem 2-96 Problem 2-105 Problem 2-114 Problem 2-123 Problem 2-132 Problem R2-2
Problem 2-88 Problem 2-97 Problem 2-106 Problem 2-115 Problem 2-124 Problem 2-133 Problem R2-3
Problem 2-89 Problem 2-98 Problem 2-107 Problem 2-116 Problem 2-125 Problem 2-134 Problem R2-4
Chapter 3: Equilibrium of a Particle
Problem 3-1 Problem 3-10 Problem 3-21 Problem 3-31 Problem 3-41 Problem 3-51 Problem 3-61 Problem R3-4
Problem 3-2 Problem 3-12 Problem 3-22 Problem 3-32 Problem 3-42 Problem 3-52 Problem 3-62 Problem R3-5
Problem 3-3 Problem 3-13 Problem 3-23 Problem 3-33 Problem 3-43 Problem 3-53 Problem 3-63 Problem R3-6
Problem 3-4 Problem 3-14 Problem 3-24 Problem 3-34 Problem 3-44 Problem 3-54 Problem 3-64 Problem R3-7
Problem 3-5 Problem 3-15 Problem 3-25 Problem 3-35 Problem 3-45 Problem 3-55 Problem 3-65 Problem R3-8
Problem 3-6 Problem 3-16 Problem 3-26 Problem 3-36 Problem 3-46 Problem 3-56 Problem 3-66
Problem 3-7 Problem 3-17 Problem 3-27 Problem 3-37 Problem 3-47 Problem 3-57 Problem 3-67
Problem 3-8 Problem 3-18 Problem 3-28 Problem 3-38 Problem 3-48 Problem 3-58 Problem R3-1
Problem 3-9 Problem 3-19 Problem 3-29 Problem 3-39 Problem 3-49 Problem 3-59 Problem R3-2
Problem 3-10 Problem 3-20 Problem 3-30 Problem 3-40 Problem 3-50 Problem 3-60 Problem R3-3
Chapter 4: Force System Resultants
Problem 4-1 Problem 4-10 Problem 4-19 Problem 4-28 Problem 4-37 Problem 4-46 Problem 4-55 Problem 4-64 Problem 4-73
Problem 4-2 Problem 4-11 Problem 4-20 Problem 4-29 Problem 4-38 Problem 4-47 Problem 4-56 Problem 4-65 Problem 4-74
Problem 4-3 Problem 4-12 Problem 4-21 Problem 4-30 Problem 4-39 Problem 4-48 Problem 4-57 Problem 4-66 Problem 4-75
Problem 4-4 Problem 4-13 Problem 4-22 Problem 4-31 Problem 4-40 Problem 4-49 Problem 4-58 Problem 4-67 Problem 4-76
Problem 4-5 Problem 4-14 Problem 4-23 Problem 4-32 Problem 4-41 Problem 4-50 Problem 4-59 Problem 4-68 Problem 4-77
Problem 4-6 Problem 4-15 Problem 4-24 Problem 4-33 Problem 4-42 Problem 4-51 Problem 4-60 Problem 4-69 Problem 4-78
Problem 4-7 Problem 4-16 Problem 4-25 Problem 4-34 Problem 4-43 Problem 4-52 Problem 4-61 Problem 4-70 Problem 4-79
Problem 4-8 Problem 4-17 Problem 4-26 Problem 4-35 Problem 4-44 Problem 4-53 Problem 4-62 Problem 4-71 Problem 4-80
Problem 4-9 Problem 4-18 Problem 4-27 Problem 4-36 Problem 4-45 Problem 4-54 Problem 4-63 Problem 4-72 Problem 4-81
Chapter 4: Force System Resultants (cont'd)
Problem 4-82 Problem 4-91 Problem 4-100 Problem 4-109 Problem 4-118 Problem 4-127 Problem 4-136 Problem 4-145 Problem 4-154
Problem 4-83 Problem 4-92 Problem 4-101 Problem 4-110 Problem 4-119 Problem 4-128 Problem 4-137 Problem 4-146 Problem 4-155
Problem 4-84 Problem 4-93 Problem 4-102 Problem 4-111 Problem 4-120 Problem 4-129 Problem 4-138 Problem 4-147 Problem 4-156
Problem 4-85 Problem 4-94 Problem 4-103 Problem 4-112 Problem 4-121 Problem 4-120 Problem 4-139 Problem 4-148 Problem 4-157
Problem 4-86 Problem 4-95 Problem 4-104 Problem 4-113 Problem 4-122 Problem 4-121 Problem 4-140 Problem 4-149 Problem 4-158
Problem 4-87 Problem 4-96 Problem 4-105 Problem 4-114 Problem 4-123 Problem 4-122 Problem 4-141 Problem 4-150 Problem 4-159
Problem 4-88 Problem 4-97 Problem 4-106 Problem 4-115 Problem 4-124 Problem 4-123 Problem 4-142 Problem 4-151 Problem 4-160
Problem 4-89 Problem 4-98 Problem 4-107 Problem 4-116 Problem 4-125 Problem 4-124 Problem 4-143 Problem 4-152 Problem 4-161
Problem 4-90 Problem 4-99 Problem 4-108 Problem 4-117 Problem 4-126 Problem 4-125 Problem 4-144 Problem 4-153 Problem 4-162
Chapter 5: Equilibrium of a Rigid Body
Problem 5-1 Problem 5-12 Problem 5-23 Problem 5-34 Problem 5-45 Problem 5-56 Problem 5-67 Problem 5-78
Problem 5-2 Problem 5-13 Problem 5-24 Problem 5-35 Problem 5-46 Problem 5-57 Problem 5-68 Problem 5-79
Problem 5-3 Problem 5-14 Problem 5-25 Problem 5-36 Problem 5-47 Problem 5-58 Problem 5-69 Problem 5-80
Problem 5-4 Problem 5-15 Problem 5-26 Problem 5-37 Problem 5-48 Problem 5-59 Problem 5-70 Problem 5-81
Problem 5-5 Problem 5-16 Problem 5-27 Problem 5-38 Problem 5-49 Problem 5-60 Problem 5-71 Problem 5-82
Problem 5-6 Problem 5-17 Problem 5-28 Problem 5-39 Problem 5-50 Problem 5-61 Problem 5-72 Problem 5-83
Problem 5-7 Problem 5-18 Problem 5-29 Problem 5-40 Problem 5-51 Problem 5-62 Problem 5-73 Problem 5-84
Problem 5-8 Problem 5-19 Problem 5-30 Problem 5-41 Problem 5-52 Problem 5-63 Problem 5-74 Problem 5-85
Problem 5-9 Problem 5-20 Problem 5-31 Problem 5-42 Problem 5-53 Problem 5-64 Problem 5-75
Problem 5-10 Problem 5-21 Problem 5-32 Problem 5-43 Problem 5-54 Problem 5-65 Problem 5-76
Problem 5-11 Problem 5-22 Problem 5-33 Problem 5-44 Problem 5-55 Problem 5-66 Problem 5-77
Chapter 6: Structural Analysis
Problem 6-1 Problem 6-7 Problem 6-13 Problem 6-19 Problem 6-25 Problem 6-31 Problem 6-37 Problem 6-43 Problem 6-49
Problem 6-2 Problem 6-8 Problem 6-14 Problem 6-20 Problem 6-26 Problem 6-32 Problem 6-38 Problem 6-44 Problem 6-50
Problem 6-3 Problem 6-9 Problem 6-15 Problem 6-21 Problem 6-27 Problem 6-33 Problem 6-39 Problem 6-45 Problem 6-51
Problem 6-4 Problem 6-10 Problem 6-16 Problem 6-22 Problem 6-28 Problem 6-34 Problem 6-40 Problem 6-46 Problem 6-52
Problem 6-5 Problem 6-11 Problem 6-17 Problem 6-23 Problem 6-29 Problem 6-35 Problem 6-41 Problem 6-47 Problem 6-53
Problem 6-6 Problem 6-12 Problem 6-18 Problem 6-24 Problem 6-30 Problem 6-36 Problem 6-42 Problem 6-48 Problem 6-54
Chapter 6: Structural Analysis (cont'd)
Problem 6-55 Problem 6-63 Problem 6-71 Problem 6-79 Problem 6-87 Problem 6-95 Problem 6-103 Problem 6-111
Problem 6-56 Problem 6-64 Problem 6-72 Problem 6-80 Problem 6-88 Problem 6-96 Problem 6-104 Problem 6-112
Problem 6-57 Problem 6-65 Problem 6-73 Problem 6-81 Problem 6-89 Problem 6-97 Problem 6-105 Problem 6-113
Problem 6-58 Problem 6-66 Problem 6-74 Problem 6-82 Problem 6-90 Problem 6-98 Problem 6-106 Problem 6-114
Problem 6-59 Problem 6-67 Problem 6-75 Problem 6-83 Problem 6-91 Problem 6-99 Problem 6-107 Problem 6-115
Problem 6-60 Problem 6-68 Problem 6-76 Problem 6-84 Problem 6-92 Problem 6-100 Problem 6-108 Problem 6-116
Problem 6-61 Problem 6-69 Problem 6-77 Problem 6-85 Problem 6-93 Problem 6-101 Problem 6-109 Problem 6-117
Problem 6-62 Problem 6-70 Problem 6-78 Problem 6-86 Problem 6-94 Problem 6-102 Problem 6-110 Problem 6-118
Chapter 7: Internal Forces
Problem 7-1 Problem 7-9 Problem 7-17 Problem 7-25 Problem 7-33 Problem 7-41 Problem 7-49 Problem 7-57
Problem 7-2 Problem 7-10 Problem 7-18 Problem 7-26 Problem 7-34 Problem 7-42 Problem 7-50 Problem 7-58
Problem 7-3 Problem 7-11 Problem 7-19 Problem 7-27 Problem 7-35 Problem 7-43 Problem 7-51 Problem 7-59
Problem 7-4 Problem 7-12 Problem 7-20 Problem 7-28 Problem 7-36 Problem 7-44 Problem 7-52 Problem 7-60
Problem 7-5 Problem 7-13 Problem 7-21 Problem 7-29 Problem 7-37 Problem 7-45 Problem 7-53 Problem 7-61
Problem 7-6 Problem 7-14 Problem 7-22 Problem 7-30 Problem 7-38 Problem 7-46 Problem 7-54 Problem 7-62
Problem 7-7 Problem 7-15 Problem 7-23 Problem 7-31 Problem 7-39 Problem 7-47 Problem 7-55 Problem 7-63
Problem 7-8 Problem 7-16 Problem 7-24 Problem 7-32 Problem 7-40 Problem 7-48 Problem 7-56 Problem 7-64
Chapter 7: Internal Forces (cont'd)
Problem 7-65 Problem 7-73 Problem 7-81 Problem 7-89 Problem 7-97 Problem 7-105 Problem 7-113 Problem 7-121
Problem 7-66 Problem 7-74 Problem 7-82 Problem 7-90 Problem 7-98 Problem 7-106 Problem 7-114 Problem 7-122
Problem 7-67 Problem 7-75 Problem 7-83 Problem 7-91 Problem 7-99 Problem 7-107 Problem 7-115 Problem 7-123
Problem 7-68 Problem 7-76 Problem 7-84 Problem 7-92 Problem 7-100 Problem 7-108 Problem 7-116 Problem 7-124
Problem 7-69 Problem 7-77 Problem 7-85 Problem 7-93 Problem 7-101 Problem 7-109 Problem 7-117
Problem 7-70 Problem 7-78 Problem 7-86 Problem 7-94 Problem 7-102 Problem 7-110 Problem 7-118
Problem 7-71 Problem 7-79 Problem 7-87 Problem 7-95 Problem 7-103 Problem 7-111 Problem 7-119
Problem 7-72 Problem 7-80 Problem 7-88 Problem 7-96 Problem 7-104 Problem 7-112 Problem 7-120
Chapter 8: Friction
Problem 8-1 Problem 8-9 Problem 8-17 Problem 8-25 Problem 8-33 Problem 8-41 Problem 8-49 Problem 8-57 Problem 8-65
Problem 8-2 Problem 8-10 Problem 8-18 Problem 8-26 Problem 8-34 Problem 8-42 Problem 8-50 Problem 8-58 Problem 8-66
Problem 8-3 Problem 8-11 Problem 8-19 Problem 8-27 Problem 8-35 Problem 8-43 Problem 8-51 Problem 8-59 Problem 8-67
Problem 8-4 Problem 8-12 Problem 8-20 Problem 8-28 Problem 8-36 Problem 8-44 Problem 8-52 Problem 8-60 Problem 8-68
Problem 8-5 Problem 8-13 Problem 8-21 Problem 8-29 Problem 8-37 Problem 8-45 Problem 8-53 Problem 8-61 Problem 8-69
Problem 8-6 Problem 8-14 Problem 8-22 Problem 8-30 Problem 8-38 Problem 8-46 Problem 8-54 Problem 8-62 Problem 8-70
Problem 8-7 Problem 8-15 Problem 8-23 Problem 8-31 Problem 8-39 Problem 8-47 Problem 8-55 Problem 8-63 Problem 8-71
Problem 8-8 Problem 8-16 Problem 8-24 Problem 8-32 Problem 8-40 Problem 8-48 Problem 8-56 Problem 8-64 Problem 8-72
Chapter 8: Friction (cont'd)
Problem 8-73 Problem 8-80 Problem 8-87 Problem 8-94 Problem 8-101 Problem 8-108 Problem 8-115 Problem 8-122 Problem 8-129
Problem 8-74 Problem 8-81 Problem 8-88 Problem 8-95 Problem 8-102 Problem 8-109 Problem 8-116 Problem 8-123 Problem 8-130
Problem 8-75 Problem 8-82 Problem 8-89 Problem 8-96 Problem 8-103 Problem 8-110 Problem 8-117 Problem 8-124 Problem 8-131
Problem 8-76 Problem 8-83 Problem 8-90 Problem 8-97 Problem 8-104 Problem 8-111 Problem 8-118 Problem 8-125 Problem 8-132
Problem 8-77 Problem 8-84 Problem 8-91 Problem 8-98 Problem 8-105 Problem 8-112 Problem 8-119 Problem 8-126
Problem 8-78 Problem 8-85 Problem 8-92 Problem 8-99 Problem 8-106 Problem 8-113 Problem 8-120 Problem 8-127
Problem 8-79 Problem 8-86 Problem 8-93 Problem 8-100 Problem 8-107 Problem 8-114 Problem 8-121 Problem 8-128
Chapter 9: Center of Gravity and Centroid
Problem 9-1 Problem 9-9 Problem 9-17 Problem 9-25 Problem 9-33 Problem 9-41 Problem 9-49 Problem 9-57 Problem 9-65
Problem 9-2 Problem 9-10 Problem 9-18 Problem 9-26 Problem 9-34 Problem 9-42 Problem 9-50 Problem 9-58 Problem 9-66
Problem 9-3 Problem 9-11 Problem 9-19 Problem 9-27 Problem 9-35 Problem 9-43 Problem 9-51 Problem 9-59 Problem 9-67
Problem 9-4 Problem 9-12 Problem 9-20 Problem 9-28 Problem 9-36 Problem 9-44 Problem 9-52 Problem 9-60 Problem 9-68
Problem 9-5 Problem 9-13 Problem 9-21 Problem 9-29 Problem 9-37 Problem 9-45 Problem 9-53 Problem 9-61 Problem 9-69
Problem 9-6 Problem 9-14 Problem 9-22 Problem 9-30 Problem 9-38 Problem 9-46 Problem 9-54 Problem 9-62 Problem 9-70
Problem 9-7 Problem 9-15 Problem 9-23 Problem 9-31 Problem 9-39 Problem 9-47 Problem 9-55 Problem 9-63 Problem 9-71
Problem 9-8 Problem 9-16 Problem 9-24 Problem 9-32 Problem 9-40 Problem 9-48 Problem 9-56 Problem 9-64 Problem 9-72
Chapter 9: Center of Gravity and Centroid (cont'd)
Problem 9-73 Problem 9-80 Problem 9-87 Problem 9-94 Problem 9-101 Problem 9-108 Problem 9-115 Problem 9-122 Problem 9-129
Problem 9-74 Problem 9-81 Problem 9-88 Problem 9-95 Problem 9-102 Problem 9-109 Problem 9-116 Problem 9-123 Problem 9-130
Problem 9-75 Problem 9-82 Problem 9-89 Problem 9-96 Problem 9-103 Problem 9-110 Problem 9-117 Problem 9-124
Problem 9-76 Problem 9-83 Problem 9-90 Problem 9-97 Problem 9-104 Problem 9-111 Problem 9-118 Problem 9-125
Problem 9-77 Problem 9-84 Problem 9-91 Problem 9-98 Problem 9-105 Problem 9-112 Problem 9-119 Problem 9-126
Problem 9-78 Problem 9-85 Problem 9-92 Problem 9-99 Problem 9-106 Problem 9-113 Problem 9-120 Problem 9-127
Problem 9-79 Problem 9-86 Problem 9-93 Problem 9-100 Problem 9-107 Problem 9-114 Problem 9-121 Problem 9-128
Chapter 10: Moments of Inertia
Problem 10-1 Problem 10-7 Problem 10-13 Problem 10-19 Problem 10-25 Problem 10-31 Problem 10-37 Problem 10-43
Problem 10-2 Problem 10-8 Problem 10-14 Problem 10-20 Problem 10-26 Problem 10-32 Problem 10-38 Problem 10-44
Problem 10-3 Problem 10-9 Problem 10-15 Problem 10-21 Problem 10-27 Problem 10-33 Problem 10-39 Problem 10-45
Problem 10-4 Problem 10-10 Problem 10-16 Problem 10-22 Problem 10-28 Problem 10-34 Problem 10-40 Problem 10-46
Problem 10-5 Problem 10-11 Problem 10-17 Problem 10-23 Problem 10-29 Problem 10-35 Problem 10-41 Problem 10-47
Problem 10-6 Problem 10-12 Problem 10-18 Problem 10-24 Problem 10-30 Problem 10-36 Problem 10-42 Problem 10-48
Chapter 10: Moments of Inertia (cont'd)
Problem 10-49 Problem 10-57 Problem 10-65 Problem 10-73 Problem 10-31 Problem 10-89 Problem 10-97 Problem 10-105
Problem 10-50 Problem 10-58 Problem 10-66 Problem 10-74 Problem 10-32 Problem 10-90 Problem 10-98 Problem 10-106
Problem 10-51 Problem 10-59 Problem 10-67 Problem 10-75 Problem 10-33 Problem 10-91 Problem 10-99 Problem 10-107
Problem 10-52 Problem 10-60 Problem 10-68 Problem 10-76 Problem 10-34 Problem 10-92 Problem 10-100 Problem 10-108
Problem 10-53 Problem 10-61 Problem 10-69 Problem 10-77 Problem 10-35 Problem 10-93 Problem 10-101 Problem 10-109
Problem 10-54 Problem 10-62 Problem 10-70 Problem 10-78 Problem 10-36 Problem 10-94 Problem 10-102
Problem 10-55 Problem 10-63 Problem 10-71 Problem 10-79 Problem 10-37 Problem 10-95 Problem 10-103
Problem 10-56 Problem 10-64 Problem 10-72 Problem 10-80 Problem 10-38 Problem 10-96 Problem 10-104
Chapter 11: Virtual Work
Problem 11-1 Problem 11-8 Problem 11-15 Problem 11-22 Problem 11-29 Problem 11-36 Problem 11-43
Problem 11-2 Problem 11-9 Problem 11-16 Problem 11-23 Problem 11-30 Problem 11-37 Problem 11-44
Problem 11-3 Problem 11-10 Problem 11-17 Problem 11-24 Problem 11-31 Problem 11-38 Problem 11-45
Problem 11-4 Problem 11-11 Problem 11-18 Problem 11-25 Problem 11-32 Problem 11-39 Problem 11-46
Problem 11-5 Problem 11-12 Problem 11-19 Problem 11-26 Problem 11-33 Problem 11-40 Problem 11-47
Problem 11-6 Problem 11-13 Problem 11-20 Problem 11-27 Problem 11-34 Problem 11-41 Problem 11-48
Problem 11-7 Problem 11-14 Problem 11-21 Problem 11-28 Problem 11-35 Problem 11-42 Problem 11-49
Review
Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6
Problem R2-1 Problem R3-1 Problem R4-1 Problem R5-1 Problem R6-1
Problem R2-2 Problem R3-2 Problem R4-2 Problem R5-2 Problem R6-2
Problem R2-3 Problem R3-3 Problem R4-3 Problem R5-3 Problem R6-3
Problem R2-4 Problem R3-4 Problem R4-4 Problem R5-4 Problem R6-4
Problem R2-5 Problem R3-5 Problem R4-5 Problem R5-5 Problem R6-5
Problem R2-6 Problem R3-6 Problem R4-6 Problem R5-6 Problem R6-6
Problem R2-7 Problem R3-7 Problem R4-7 Problem R5-7 Problem R6-7
Problem R2-8 Problem R3-8 Problem R4-8 Problem R5-8 Problem R6-8
Review
Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11
Problem R7-1 Problem R8-1 Problem R9-1 Problem R10-1 Problem R11-1
Problem R7-2 Problem R8-2 Problem R9-2 Problem R10-2 Problem R11-2
Problem R7-3 Problem R8-3 Problem R9-3 Problem R10-3 Problem R11-3
Problem R7-4 Problem R8-4 Problem R9-4 Problem R10-4 Problem R11-4
Problem R7-5 Problem R8-5 Problem R9-5 Problem R10-5 Problem R11-5
Problem R7-6 Problem R8-6 Problem R9-6 Problem R10-6 Problem R11-6
Problem R8-7 Problem R9-7 Problem R10-7 Problem R11-7
Problem R8-8 Problem R9-8 Problem R10-8 Problem R11-8
Problem R9-9
Problem R9-10