Solve the problem.In simplified form, the period of vibration P for a pendulum varies directly as the square root of its length L. If P is 3.5 sec. when L is 49 in., what is the period when the length is 25 in.?
A. 2.5 sec
B. 50 sec
C. 10 sec
D. 12.5 sec
Answer: A
Mathematics
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