A large, simple pendulum is on display in the lobby of the United Nations buildi

label Physics
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A large, simple pendulum is on display in the lobby of the United Nations building. If the pendulum is 20.0 m in length, what is the least amount of time it takes for the bob to swing from a position of maximum displacement to the equilibrium position of the pendulum? (Assume that the acceleration of gravity is g = 9.81 m/s2 at the UN building.)

 s
Mar 31st, 2015

Total time period of one round

T = 2 pi root ( L/g)

T = 2 x 3.14 root ( 20/9.81) 

T = 8.96

For the pendulum to go from one extremum to centre of equlibrium = 1/4 T =1/4 x 8.96 =  2.24 seconds.


Mar 31st, 2015

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Mar 31st, 2015
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Mar 31st, 2015
Sep 20th, 2017
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