Example 5.1 A body of mass 0.2 kg performs linear S.H.M. It experiences a restoring force of 0.2 N when its displacement from the mean position is 4 cm. Determine (i) force constant (ii) period of S.H.M. and (iii) acceleration of the WI body when its displacement from the mean position is 1 cm. aExample 5.2: A particle performs linear S.H.M. of period 4 seconds and amplitude 4 cm. Find the time taken by it to travel a distance of 1 cm from the positive extreme position.Example 5.3: A particle performing linear S.H.M. with period 6 second is at the positive extreme position at t = 0. The particle is found to be at a distance of 3 cm from this position at time t = 7s, before reaching the mean position. Find the 113amplitude of S.H.M