Question

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 at 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 1

Answer ⇒ Option (d) . 0 %.

Explanation ⇒

We know that if there will be the Increase in the Input of Petrol then the angular velocity of the wheel must also increases.

But in case if there is no Friction on the Road then no external force on the scooter is applied.

Hence the linear velocity of the scooter is not increased. Thus, It will remains same as if was.

Hence, the Option (d). 0 % is correct.

Hope it helps.