A car is moving with a uniform velocity along a horizontal road. Does the engne of car do any work in this instance ?

A car is moving with a uniform velocity along a horizontal road. Does

1.	A car is moving with a uniform velocity along a horizontal road. Does the engne of car do any work in this instance ?
Answer» SOLUTION :Force of friction actsopposite to the direction of motion of THECAR. Force applied by the engine of the car against friction maintains its UNIFORM velocity . This force is doing work as displacement occurs against frication. If F= force of friction and v=velocity of the car, work done in 1s by the engine = force of friction `xx` constant velocity=fv.