Question

Assertion : A cyclist leans inwards while taking a turn, while a man sitting in a car leans outwards on a curve.

Reason : Centripetal acceleration is acting towards the centre of the curve.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (a) Both A and R are true and R is the correct explanation of A

Explanation :

In both the cases of the cycle and the car, it is the centripetal acceleration towards the centre which provides the necessary frictional force in a turning so that there is no skidding. In the case of the cyclist, as the centre of gravity, of tile system (cycle + cyclist) goes through the cyclist, the whole system leans towards the centre of the arc. But in case of the car, the centre of gravity does not pass through a person sitting in the car. That's why due to inertia, that person leans outwards.