Question

A body of mass 2 kg moves with a velocity of 5 m/s on a circular track. Calculate the centripetal force required to keep the body in uniform circular motion. The radius of circular path is 1 m.

Answer 1

Given:

Mass of the body (m) = 2 kg

Velocity (v) = 5 m/s

Radius of the track (r) = 1 m

Formula: 

Centripetal Force (F) = `(mv^2)/r`

= `(2 xx (5)^2)/1`

= 2 × 25

= 50 N

The required centripetal force is 50 N.