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AP® Physics C: Mechanics

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Moderate

Kinetic Energy from a Position Function

APPHMC-JGV00W

A 2 kg object is placed on a horizontal spring and is set into motion. Its position with respect to time is given by the following function:

$$x(t)=0.5cos(10t)$$
$$x(t)=0.5 \text{ when } t=0$$

What is the maximum kinetic energy of the object?

A

25 J

B

10 J

C

5 J

D

0.25 J

E

0 J