AOB is a smooth semicircular track of radius r. A block of mass `m` is given a velocity `sqrt(2rg)` parallel to track at point A. Calculate normal reaction between block and track when block reaches at point O.

Figure shows a smooth vertical circular track AB of radius R. A block slides along the surface AB when it is given a velocity equal to sqrt(6gR) at point A. The ratio of the force exerted by the track on the block at point A to that at point B is

Figure shows a smooth vertical circular track AB of radius R. A block slides along the surface AB when it is given a velocity equal to sqrt(6gR) at point A. The ratio of the force exerted by the track on the block at point A to that at point B is

A block of mass m is placed on a vertical fixed circular track and then it is given velocity v along the track at position A on track. The coefficient of friction between the block and the track varies with the angle theta . If the block moves on track with constant speed then the coefficient of friction is

A block of mass m is placed on a vertical fixed circular track and then it is given velocity v along the track at position A on track. The coefficient of friction between the block and the track varies with the angle theta . If the block moves on track with constant speed then the coefficient of friction is

A block of mass 'm' is placed on wedge of mass 'M'. If all the surfaces are smooth Normal reaction between the wedge and block is

A block of mass m is placed on a triangular block of mass M(M = 2m) , as shown. All surfaces are smooth. Calculate the velocity of triangular block when the smaller block reaches at bottom.

A block of mass m is placed on a triangular block of mass M(M = 2m) , as shown. All surfaces are smooth. Calculate the velocity of triangular block when the smaller block reaches at bottom.

A block of mass M with a semi - circular track of radius R rests on a smooth floor. A sphere of mass m and radius r is released from rest from A . Find the velocity of sphere and track , when the sphere reaches B .

A block of mass M with a semi - circular track of radius R rests on a smooth floor. A sphere of mass m and radius r is released from rest from A . Find the velocity of sphere and track , when the sphere reaches B .

A small block of mass m is pushed on a smooth track from position A with a velocity (2)/(sqrt(5)) times the minimum velocity required to reach point D. The block will leave the contact with track at the point where normal force between them becomes zero. Q. When the block reaches the point B, what is the direction (in terms of angle with horizontal) of acceleration of the block?