Assertion : A cyclist bends inwards from his ver- tical position, while turning to secure the necessary centripetal force.
Reason : Friction between the tyres and road pro- vides him the necessary centripetal force.

A cyclist has to bend a little inwards from his vertical position while turning. Why?

A car is moving along a horizontal curve road, the necessary centripetal force is provided by

Assertion : Improper banking of roads causes wear and tear of tyres. Reason : The necessary centripetal force is provided by the force of friction between the tyres and the road.

If friction can provide necessary centripetal force, why should the road be banked?

For a banked curved road. The necessary centripetal force or any vehicle is provided by

For a banked curved road. The necessary centripetal force or any vehicle is provided by

Statement I : Earth continuously attracts the moon towards its centre and yet the moon does not move towards the centre of earth. Statement II : The gravitational force of atteraction between the moon and earth provides the necessary centripetal force.

When a cyclist turns on a circular path,the necessary centripetal force is provided by friction between the tyres and the road. If centripetal force is not provided by friction, then for the vehicle to move on circular path, the track is banked. If the speed of a vehicle is doubled, then for safety of vehicle