SAT Subject Physics Practice Question 488: Answer and Explanation

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Question: 488

4. When a net force acts upon an object, the object is

A. at rest.
B. gaining mass.
C. losing mass.
D. accelerating.
E. moving at constant velocity.

Correct Answer: D


The correct answer is (D). A net force applied to a body causes the body to be accelerated. This is Sir Isaac Newton's second law of motion, F = ma.

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