Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

Metals are good conductors of electricity because

Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

It is more difficult to walk on a sandy road than on a concrete road because

Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?