Not sure if I did this right. Question is: A simple pendulum is made from a stri

Question

Not sure if I did this right. Question is: A simple pendulum is made from a string that is .65m in lengthwith a mass of .2kg attached to the free end. the mass is pulled toone side through a small angle and released from rest. 1) What isthe angular frequency and period of the pendulum? If the mass weredoubled, to .4kg, wha would be the new anqular frequency andperiod? 2) How long after being released from rest does it take themass to attain its greatest speed? 3) If this pendulum were placedon the moon, would its period be greater or less than on the earth?why? Not sure if I did this right. Question is: A simple pendulum is made from a string that is .65m in lengthwith a mass of .2kg attached to the free end. the mass is pulled toone side through a small angle and released from rest. 1) What isthe angular frequency and period of the pendulum? If the mass weredoubled, to .4kg, wha would be the new anqular frequency andperiod? 2) How long after being released from rest does it take themass to attain its greatest speed? 3) If this pendulum were placedon the moon, would its period be greater or less than on the earth?why?

Explanation / Answer

Length of the pendulum L =0.65 m mass attached m = 0.2 kg (1). Angular frequency = [ g / L ]       Time period T = 2 / If the mass is doubled , the angular frequecny andperiod is not changed. (2). required time = T / 4 (3) . Period T g So, period on Moon is less than on the earth Since the accleration due to gravity on earth is greater thanaccleration due to gravity moon.

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