Question

In the figure shown below a car is moving with constant velocity of 20 m/s. A total frictional force of 5000 N is acting on the car. The force applied by the engine to maintain its velocity is

• A. 1000 N
• B. 5000 N
• C. 3000 N
• D. 10000 N

Answer 1

The correct option is B 5000 N

To maintain constant velocity of car,the net force acting on car should be zero.for this The force applied by the engine to maintain its velocity should be equal to total frictional force of is acting on the car.i.e;5000 N.