Three blocks are stacked on top of each other inside an elevator as shown in the

Question

Three blocks are stacked on top of each other inside an elevator as shown in the figure. Answer the following questions with reference to the eight forces defined as follows. the force of the 3 block on the 2 block, , the force of the 2 block on the 3 block, , the force of the 3 block on the 1 block, , the force of the 1 block on the 3 block, , the force of the 2 block on the 1 block, , the force of the 1 block on the 2 block, , the force of the 1 block on the floor, , and the force of the floor on the 1 block, . Now, assume the elevator is moving upward at increasing speed. Rank the magnitude of the forces. Rank from largest to smallest. To rank items as equivalent, overlap them.

Explanation / Answer

Answer is the same as when it would be at rest. 1. F(1 on the floor) & F(floor on 1) 2. F(1 on 2) & F(2 on 1) 3. F(2 on 3) & F(3 on 2) 4. F(3 on 1) & F(1 on 3)

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