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Shown is a block of wood floating in a bucket of water. The bucket is placed in an elevator as shown in the animation (position is in meters and time is in seconds). Restart.

1. Elevator in free fall: If the picture on the left represents the orientation of the wood when the elevator is stationary, which animation correctly depicts the new orientation of the wood while the elevator is in free fall as shown (assume a broken cable)?

Animation 1a | Animation 2a | Animation 3a

2. Elevator rising: If the picture on the left represents the orientation of the wood when the elevator is stationary, which animation correctly depicts the new orientation of the wood while the elevator is moving as shown?

Animation 1b | Animation 2b | Animation 3b

Problem authored by Mario Belloni and Anne J. Cox.