SAT Subject Physics Practice Question 540: Answer and Explanation

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Question: 540


A 50 kg object slides to a stop over a period of time. Which of the graphs represents each of the described factors?

Velocity of the object

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

Correct Answer: C


The correct answer is (C). The object is subjected to a constant negative acceleration (it is slowing down). The velocity time graph for an object that is subjected to a constant acceleration is a linear curve, as in the graph shown in C.

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