A delivery person carries a stack of three boxes labeled 1, 2, and 3, with box...
A delivery person carries a stack of three boxes labeled 1, 2, and 3, with box 3 on the bottom of the stack and box 1 on the top. The masses of boxes 1, 2, and 3 are ?1=1.05 kg, ?2=2.44 kg, and ?3=6.80 kg, respectively. The delivery person places the stack of boxes on an elevator floor, which then accelerates upward with a magnitude of ?=0.80 m/s2.
Let ?=9.81 m/s2 denote the acceleration due to gravity, and let the positive ?-direction be upward.
Calculate the contact force ?⃗1→2 that box 1 exerts on box 2 during the acceleration.
Calculate the contact force ?⃗3→2 that box 3 exerts on box 2 during the acceleration.
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