Q. 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. And in case of car, the person leans outward due to inertia.

 1981  227 AIIMSAIIMS 1997Motion in a Plane Report Error

Solution:

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 the 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.