SAT Subject Physics Practice Question 353: Answer and Explanation

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Question: 353

49. Two concurrent forces act at right angles to one another.The resultant force is 65N and one of the component forces is 35N. What is the force of the other component?

A. 40N
B. 45N
C. 50N
D. 55N
E. 60N

Correct Answer: D


The correct answer is (D). The missing vector component is found by using the Pythagorean theorem..

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