SAT Subject Physics Practice Question 107: Answer and Explanation

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Question: 107

2. A rope of length 5 m is stretched to a tension of 80 N. If its mass is 1 kg, at what speed would a 10 Hz transverse wave travel down the string?

A. 2 m/s
B. 5 m/s
C. 20 m/s
D. 50 m/s
E. 200 m/s

Correct Answer: C


The speed of a transverse traveling wave on a stretched rope is given by the equation v = . Therefore

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