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AP Physics B Practice Exam

Category - Introductory Physics

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Which of the following describes the mechanical energy of a cart at rest at the top of a steep hill?
  1. The cart has no mechanical energy.
  2. The cart’s mechanical energy is all kinetic.
  3. The cart’s mechanical energy is all potential.
  4. The cart’s mechanical energy is half potential and half kinetic.
Explanation
Answer: C - The cart’s mechanical energy is all potential.
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