1.

a car is intended to move on a rough road by applying a force of 1000 Newton calculate the force of friction of the car if it starts moving with a constant velocity of 30 km per hour on the road

Answer»

Answer:

1000 N

Explanation: As CAR is MOVING with constant velocity , so acceleration of the car is zero. Then net force is EQUAL to zero.Thus the applied force by car is equal and opposite to the frictional force.

      f - ma = lmg

Where, L is coefficient of friction

             f force applied by car

             a is the acceleration of the car which is zero

             m mass of the car

lmg = f = 1000 N = friction force

                 



Discussion

No Comment Found

Related InterviewSolutions