Question

An 8 kg body performs SHM of amplitude 30 cm. The restoring force is 60 N, when the displacement is 30 cm. Find 

(a) time period 

(b) the acceleration, P.E and K.E., when displacement is 12 cm.

Answer 1

Here, m = 8 kg ; a = 30 cm = 0.30 m ; 

(a) F = 60 N ; y = 0.30 m