ANGLE OF FRICTION

Block Problems On Friction|Angle Of Repose|Two Blocks On An Inclined Plane

If force F is gradually increased from zero to 50 N , tehn (a) find the minimum contact force, (b) find the maximum value of angle of friction when F = 30 N , (d) find the angle of friction when the block is moving with constant velocity and ( e) sketch a graph between friction and applied force.

Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta The angle of friction in the above question is .

Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A force of 49N is just able to move a block of wood weighing 10kg on a rough horizontal surface The coefficient of friction is .