A simple pendulum performs S.H.M of period 4 seconds. How much time after crossing the mean position , will the displacement of the bob be one third of its amplitude.

A simple pendulum of length 100 cm performs S.H.M. Find the restoring force acting on its bob of mass 50 g when the displacement from the mean position is 3cm.

A simple pendulum of length 100 cm perforns S.H.M. Find the restoring force acting on its bob of mass 50 g when the displacement from the mean position is 3 cm.

The periodic time of a body executing simple harmonic motion is 3 sec. After how much time from time t=0 , its displacement will be half of its amplitude

A particle performs S.H.M. of period 4 seconds and amplitude 4 cm. If initially the particle is at positive extremity, how much time will it take to cover a distance of 1 cm from the extreme position?

A particle performs S.H.M. of period 12 second and amplitude 8 cm. If initially the particle is at the position extremity , how much time will it take to cover a distance of 6 cm from the extreme position ?

At the mean position, the potential energy of a particle performing S.H.M. is

The bob of a simple pendulum performs SHM with period T in air and with period T_(1) in water. Relation between T and T_1 is (neglect friction due to water, density of the material of the bob is = 9/8xx 10^3 (kg)/m^3 , density of water = 10^3(kg)/m^3 )