SAT Subject Physics Practice Question 670: Answer and Explanation

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Question: 670

6.

A 50 gram bead slides on a frictionless wire as shown above. At what point on the wire will the bead come to a complete stop?

A. Point A
B. Point B
C. Point C
D. Point D
E. Point E

Correct Answer: A

Explanation:

The correct answer is (A). The bead slides on a frictionless wire to the other side, where it stops and slides back to A, where it again stops to repeat the process over again.

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