A wagon is accelerating down a hill. Which of the following statements are true?

A. As the wagon approaches the bottom of the hill, the potential energy decreases and the kinetic energy increases.

B. The kinetic energy decreases as the wagon comes towards the bottom of the hill.

C. As the wagon approaches the bottom of the hill, the potential energy and the kinetic energy both increase.

D. The thermal energy decreases as the wagon comes towards the bottom of the hill.,

Question

Physics

Madeleine Li

25 October, 09:51

A wagon is accelerating down a hill. Which of the following statements are true?

A. As the wagon approaches the bottom of the hill, the potential energy decreases and the kinetic energy increases.

B. The kinetic energy decreases as the wagon comes towards the bottom of the hill.

C. As the wagon approaches the bottom of the hill, the potential energy and the kinetic energy both increase.

D. The thermal energy decreases as the wagon comes towards the bottom of the hill.,

+2

Answers (1)

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Kristian Strong · Answer 1

A. As the wagon approaches the bottom of the hill, the potential energy decreases and the kinetic energy increases. Potential energy and kinetic energy are opposites. At the top of the hill the wagon has max potential energy and no kinetic energy. At the bottom of the hill the wagon has max kinetic energy and no potential energy. So as the wagon approaches the bottom of the hill potential energy decreases and kinetic energy increases.