Home
Class 11
PHYSICS
The angle which the rough inclined plane...

The angle which the rough inclined plane makes with the horizontal when the body placed on it just starts sliding down is called

A

angle of friction

B

Angle of repose

C

Critical angle

D

Brewster's angle

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A cubical block rests on a plane of mu= sqrt(3) . The angle through which the plane be inclined to the horizontal so that the block just slides down will be -

Assertion: A body slides down an inclined plane if the angle of friction is more than the angle of the inclined plane with the horizontal. Reason : When the angle of inclination is equal to the angle of friction, the component of weight parallel to the plane is just sufficient to overcome the frictional force.

A block of mass m rests on a rough inclined plane. The coefficient of friction between the surface and the block is µ. At what angle of inclination theta of the plane to the horizontal will the block just start to slide down the plane?

If the angle of inclination of the inclined plane is sin^(-1) ((1)/(2)) when the body just starts sliding find the angle of repose and coefficient of static friction between the body and the inclined plane.

Starting from rest, the time taken by a body sliding down on a rough inclined plane at 45^(@) with the horizontal is twice the time taken to travel on a smooth plane of same inclination and same distance. Then, the coefficient of kinetic friction is

A rectangular box lies on a rough inclined surface . The coefficient of friction between the surface and the box is mu . Let the mass of the box be m . (a) At what angle of inclination theta of the plane to the horizontal will the box just start to slide down the plane ? (b) What is the force acting on the box down the plane , if the angle of inclination of the plane is increased to alpha gt theta ? (c) What is the force needed to be applied upwards along the plane to make the box either remain stationary or just move up with uniform speed ? (d) What is the force needed to be applied upwards along the plane to make the box move up the plane with acceleration a ?

A body is pushed up on a rough inclined plane making an angle 30^@ to the horizontal. If its time of ascent on the plane is half the time of its descent, find coefficient of friction between the body and the incined plane.

A mass of 4 kg rest on a horizontal plane . The plane is gradually inclined until an angle 0 = 15^(@) with the horizontal and the mass just begins to slide . What is the coefficient of static friction between the block and the surface ?

A uniform disc of mass m and radius R is rolling up a rough inclined plane which makes an angle of 30^@ with the horizontal. If the coefficients of static and kinetic friction are each equal to mu and the only force acting are gravitational and frictional, then the magnitude of the frictional force acting on the disc is and its direction is .(write up or down) the inclined plane.

A body of mass m is launched up on a rough inclined plane making an angle 45^(@) with horizontal If the time of ascent is half of the time of descent, the frictional coefficient between plane and body is