Solve the Problem

Multiple Choice

Solve the problem. Round your answer to two decimal places.
-The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 4 sec when the length is 64 inches, what is the period when L = 5.0625
Inches?

A) 5 sec
B) 1.125 sec
C) 4.5 sec
D) 4.75 sec