An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the bottom . If the coefficient of friction between the ground and the insect is 0.75 , then h is : `(g = 10 ms^(-2))`

A body is kept on a horizontal disc of radius 2 m at a distance of 1 m from the centre . The coefficient of friction between the body and the surface of disc is 0.4. The speed of rotation of the disc at which the body starts slipping is (g=10 m//s^2 )

A body is kept on a horizontal disc of radius 2 m at a distance of 1 m from the centre . The coefficient of friction between the body and the surface of disc is 0.4. The speed of rotation of the disc at which the body starts slipping is (g=10 m//s^2 )

A ball is dropped from a height h on the ground If the coefficient of restitution is e, the height to which the ball goes up after it rebounds for the nth time is

An object of mass m is slowly pushed some partway up a verticle up a verticle loop ending at a point a height h lt R above the bottom. The coefficient of friction between the object and the track is a constant mu. Find work that has to be done against friction.

A house is built on the top of a hill with 45^(@) slope Due to the sliding of meterial and sand top from top to the bottom of till , the slip angle has been redaced if the coefficient of static friction between sand particles is 0.75 what is the final angle attated by bill ? (tan^(-1) 0.75= 37^(@))

A house is built on the top of a hill with 45^(@) slope Due to the sliding of meterial and sand top from top to the bottom of till , the slip angle has been redaced if the coefficient of static friction between sand particles is 0.75 what is the final angle attated by bill ? (tan^(-1) 0.75= 37^(@))

A body is allowed to fall on the ground from a height h_(1) . If it is rebound to a height h_(2) then the coefficient of restitution is:

A body is allowed to fall on the ground from a height h_1 . If it is to rebound to a height h_2 ,then the coefficient of restitution is