Question

A car moves on a flat circular track of $200$ m radius with a constant speed of $20$ if the car weighs $400$ kg the centripetal force acting on the car is:

Answer 1

We know centripetal force =mass$\times$radius $\times$ ${\omega }^2$-------------(1)

Given mass of the car=400 kg and radius =200 m and $\omega =\frac{v}{r}=\frac{20}{200}=0.1rad/s$

Now putting the above values in 1 we get,

$F_c=400\times 200\times {0.1}^2=800N$