A pendulum is formed by pivoting a long thin rod about a point on the rod. In a

Question

A pendulum is formed by pivoting a long thin rod about a point on the rod. In a series of experiments, the period is measured as a function of the distance x between the pivot point and the rod's center. (a) If the rod's length is L = 2.20 m and its mass m = 22.1 g, what is the minimum period? (b) If x is chosen to minimize the period and then L is increased, does the period increase, decrease, or remain the same? (c) If instead, m is increased without L increasing, does the period increase, decrease, or remain the same?

Explanation / Answer

we know thalt time period T = 2pvl/g here we have l = 2.2 and g = 9.81 so we have T = 2*3.14*v2.2/9,81 = 2.9739 sec

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