O Macmillan Learning = = A delivery person carries a stack of three boxes labeled 1, 2, and 3. Box 3 is on the bottom of the stack, and box 1 is on the top. The masses of boxes 1, 2, and 3 are m₁ = 4.5 kg, m₂ 5.5 kg, and m3 8.0 kg, respectively. The delivery person places the stack of boxes on an elevator floor, which then accelerates upward with a magnitude of a = Assume that the positive direction is up. : 0.70 m/s². Calculate the contact force F1-2 that box 1 exerts on box 2 during the acceleration. Calculate the contact force F3-2 that box 3 exerts on box 2 during the acceleration. F1→2 = F3-2 N = N

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Chapter1: Units, Trigonometry. And Vectors
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O Macmillan Learning
=
=
A delivery person carries a stack of three boxes labeled 1, 2, and 3. Box 3 is on the bottom of the stack, and box 1 is on the top.
The masses of boxes 1, 2, and 3 are m₁ = 4.5 kg, m₂ 5.5 kg, and m3 8.0 kg, respectively. The delivery person places the
stack of boxes on an elevator floor, which then accelerates upward with a magnitude of a =
Assume that the positive direction is up.
: 0.70 m/s².
Calculate the contact force F1-2 that box 1 exerts on box 2
during the acceleration.
Calculate the contact force F3-2 that box 3 exerts on box 2
during the acceleration.
F1→2 =
F3-2
N
=
N
Transcribed Image Text:O Macmillan Learning = = A delivery person carries a stack of three boxes labeled 1, 2, and 3. Box 3 is on the bottom of the stack, and box 1 is on the top. The masses of boxes 1, 2, and 3 are m₁ = 4.5 kg, m₂ 5.5 kg, and m3 8.0 kg, respectively. The delivery person places the stack of boxes on an elevator floor, which then accelerates upward with a magnitude of a = Assume that the positive direction is up. : 0.70 m/s². Calculate the contact force F1-2 that box 1 exerts on box 2 during the acceleration. Calculate the contact force F3-2 that box 3 exerts on box 2 during the acceleration. F1→2 = F3-2 N = N
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