SAT Subject Physics Practice Question 310: Answer and Explanation

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Question: 310

6. The graph below shows an object that is thrown almost straight up from the top of a ten-story building.

At what point on the graph does the potential energy of the object equal the kinetic energy of the object?

A.
B.
C.
D.
E.

Correct Answer: C

Explanation:

The correct answer is (C). The object has lost exactly half the potential energy it originally had. It has gained the lost potential energy as kinetic energy at the point where the two lines of the graph coincide.

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