Energy Conservation With Conservative Forces: Two frisky otters slide down frictionless hillsides of the same height but different slopes. The slope of the hill of otter 1 is 30°, while the slope of the hill of otter 2 is 60°. If both start from rest, which otter is moving faster when she reaches the bottom of her hill?
A. Otter 1 is moving faster.
B. Otter 2 is moving faster.
C. The heavier otter is moving faster, no matter which hill she used.
D. Both otters have the same speed at the bottom.
E. The otter that took the shorter time is moving faster.
Answer: D
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