A particle is projected up a rough inclined plane of inclination `theta` and friction coefficient `mu`. If the time of ascent is half of the time of descent, the friction coefficient `mu` is equal to

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

. A particle is projected up along a rough inclined plane of inclination 45^(@) with the horizontal. If the coefficient of friction is 0.5, the acceleration is

(a) A block slides down an incline of angle 45^(@) with an acceleration (g)/(2 sqrt(2)) . Find the friction coefficient. (b) A block slides down at 45^(@) inclined plane in twice the time it takes to slide down a smooth 45^(@) incline. What is friction co-efficient between the block and the incline? ( c) A block slides down on a rough inclined plane of inclination 30^(@) with constant velocity. If this block is projected up the plane with a velocity of 10 m//s , then at what distance along the inclined plane , the block will come to rest? (d) A body is launched up on a rough inclined plane of inclination theta . If time of ascent is half of time of descent, find the friction coefficient.

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 body is projected up along a rough inclined plane of inclination 45 ^@ . The coefficient of friction is 0.5. Then the retardation of the block is