Question

A 2gm particle is subjected to an elastic force of 0.03N/m and a frictional force of 0.005Ns/m. If it is displaced through 2cm and released, find whether it is oscillatory or not. If so, find time period.​

Answer 1

Answer:

mass of the particle, m = 0.3 kg

applied force, F = - kx;

k=15N/m

x=20cm=0.2m

Let the acceleration of the particle=a

Using the Newton’s 2nd law of motion we get,

F=m×a or,−kx=ma

or, −15×0.2=0.3×a or,a=−3.0/0.3

or, a=−10m/s

2