Chapter 16.2, Problem 2bTH

As the elevator approach its destination, its speed decreases. (It continues to move downward.)
i. How does the acceleration of crate A compare to that of crate B? Explain.
ii. In the spaces provided below, draw and label separate free-body diagram for the crates in this case.

iii. Rank the forces on the crates according to magnitude, from largest to smallest. Explain your reasoning, including how you used Newton’s second and third laws.
iv. In the spaces provided at right, draw arrows to indicate the direction of the net force on each crate. If the net force on either crate is zero, state so explicitly. Explain.

Is the magnitude of the net force acting on crate Agreater than, less than, or equal to that on crate B? Explain.