Question

A car with a mass 1500kg driving on road with Coefficient of Rolling friction is 0.02 what is the rolling resistance?​

Answer 1

Answer:

0.8

Explanation:

Given : Radius of the circular path r=20 m

Mass of the car M=1500kg

Speed v=12.5 m/s

Let the coefficient of friction be μ.

The centrifugal force will balance the friction force so that the car does not slip.

∴

r

mv

2

=μmg ⟹ μ=

rg

v

2

μ=

20×9.8

(12.5)

2

=0.8