A smooth inclined plane is inclined at an angle `theta` with the horizontal. A body starts from rest and slides down the inclined surface. The time taken by the body to reach the bottom is

If the body starts from rest from the top of the rough inclined plane of length 1, time taken to reach the bottom of the plane is

A block slides down from top of a smooth inclined plane of elevation theta fixed in an elevator going up with an acceleration a_0 The base of incline has length L. Find the time taken by the block to reach the bottom.

The upper half of an inclined plane with an angle of inclination theta, is smooth while the lower half is rough. A body starting from rest at the top of the inclined plane comes to rest at the bottom of the inclined plane. Then the coefficient of friction for the lower half is

A smooth inclined plane of length L, having an inclination theta with horizontal is inside a lift which is moving down with retardation a. The time taken by a block to slide down the inclined plane from rest will be

An object is placed on the surface of smooth inclined plane of inclination . It takes time to reach the bottom. If the same object is allowed to slide down the rough inclined plane of the same inclination, the time to reach the bottom is increased n times, where n gt 1 . The coefficient of friction for the plane is :

The upper half of an inclined plane with an angle of inclination 4, is smooth while the lower half is rough. A body starting from rest at the top of the inclined plane comes to rest at the bottom of the inclined plane. Then the coefficient of friction for the lower half is