Q. 225.0( 1 Vote )

The angular velocity of the engine (and hence of the wheel) of a scooter is proportional to the petrol input per second. The scooter is moving on a frictionless road with uniform velocity. If the petrol input is increased by 10%, the linear velocity of the scooter is increased by
A. 50%

B. 10%

C. 20%

D. 0%

Answer :

As the road is frictionless, it is impossible to increase the linear velocity until there exist a force in the linear direction. The engine can only increase angular speed.

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