A block placed on a rough inclined plane of inclination `( theta= 30^(@))` can just be pushed upwards by applying a froce "F"as shown. If the angle of inclination of the inclined plane is increased to `( theta = 60^(@))` , the same block can just be prevented from sliding down by application of a force of same magnitude. The coefficient of friction between the block and the inclined plane is

A block placed on a rough inclined plane of inclination (=30^(@)) can just be pushed upwards by applying a force "F" as shown. If the angle of incrination of the inclined plane is increased to (theta 60^(@)), the same block can just be prevented from sliding down by application of a force of same magnitude. The coefficient of friction between the block and the inclined plane (sqrtn -1)/(sqrtn +1) where n is

A block of mass 5 kg is placed on a rough inclined plane. The inclination of the plane is gradually increased till the block just begins to slide down. The inclination of the plane is than 3 in 5. The coefficient of friction between the block and the plane is (Take, g = 10m//s^(2) )

A block of mass 5 kg is placed on a rough inclined plane. The inclination of the plane is gradually increased till the block just begins to slide down. The inclination of the plane is than 3 in 5. The coefficient of friction between the block and the plane is (Take, g = 10m//s^(2) )

A box of mass 8 kg placed on a rough inclined plane of inclination theta its downward motion can be prevented by applying an upward pull F and it can be made to slide upward appliying a force 2F .The coefficient of friction between the box and the inclined plane is

A block of mass 4kg rests on an an inclined plane. The inclination of the plane is gradually increased. It is found that when the inclination is 3 in 5 (sin=theta(3)/(5)) the block just begins to slide down the plane. The coefficient of friction between the block and the plane is.

A block of mass 4kg rests on an an inclined plane. The inclination of the plane is gradually increased. It is found that when the inclination is 3 in 5 (sin=theta(3)/(5)) the block just begins to slide down the plane. The coefficient of friction between the block and the plane is.