A pendulum is suspended by a string of length 250 cm . The mass of the bob of the pendulum is 200 g . The bob is pulled aside until the string is at 60 ° with vertical as shown in the figure. After releasing the bob, the maximum velocity attained by the bob will be _____ m s - 1 . (if g = 10 m s - 2 )

Question

A pendulum is suspended by a string of length 250 cm . The mass of the bob of the pendulum is 200 g . The bob is pulled aside until the string is at 60 ° with vertical as shown in the figure. After releasing the bob, the maximum velocity attained by the bob will be _____ m s - 1 . (if g = 10 m s - 2 ),

MARKS App · Accepted Answer

Velocity will be maximum at the bottom point when potential energy of the pendulum will be zero(considering bottom point as reference for potential energy). 1 2 m v 2 = m g l - l cos 60 ° v = g l = 10 × 2 . 5 = 5 m s - 1

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