Question

A car of mass 1200 kg is moving on the road at the speed of 60 km/h. If
the coefficient of friction is 38 and the normal force is 50 N, the frictional
force acting on the car is given by __.
(A) 300 N
(B) 3000 N
(C) 2500 N
(D) 30 N
(E) None of these​

Answer 1

Since frictional force =

Normal × Coefficient Of Friction

= 50 × 38

= 3000N

Answer

Option B = 3000N