SAT Subject Physics Practice Question 25: Answer and Explanation

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Question: 25

2. Under the influence of a force, an object of mass 4 kg accelerates from 3 m/s to 6 m/s in 8 s. How much work was done on the object during this time?

A. 27 J
B. 54 J
C. 72 J
D. 96 J
E. Cannot be determined from the information given

Correct Answer: B


By the work–energy theorem

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