Question

define angle of friction and angle of repose .show that they numerically egual​

Answer 1

Angle of friction (φ): Angle made by the resultant of normal reaction and limiting frictional force with the normal reaction is called angle of friction. Angle of repose (θ): The minimum angle of the plane at which the body kept on it starts to slide due to its own weight is called angle of repose.

Answer 2

Angle of friction

Angle made by the resultant of normal reaction and limiting friction with the normal reaction is called angle of friction.

angle of repose

Angle of repose is defined as the angle that an inclined plane makes with the horizontal when a body placed on it just starts sliding.