A section of fixed smooth circular track of radius Rin vertical plane is shown in the figure. A block is released from position A and leaves the track at B. The radius of curvature of its trajectory when it just leaves the track at Bis-

A section of fixed smooth circular track of radius R in vertical plane is shown in the figure. A block id released from position A and leaves the treack at B The radius of curvanture of its trajectory just after it leaves the track B is ?

A section of fixed smooth circular track of radius R in vertical plane is shown in the figure. A block id released from position A and leaves the treack at B The radius of curvanture of its trajectory just after it leaves the track B is ?

In a fixed quarter circular track of radius R which lies in a vertical plane, a block is released from point A and it leaves the path at point B. The radius of curvature of its trajectory when it just leaves the path will be

In a circus a rider rides in circular track of radius R in the vertical plane. The minimum velocity at highest point of the track will be :

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 .

In a circus stuntman rides a motorbike in a circular track of radius R in the vertical plane. The minimum speed at highest point of track will be

In the figure shown, a small ball of mass 'm' can move witgout sliding in a fixed semicircular track of radius R in vertical planet. It is released from the top. The resultant force on the ball at the lowest of the track is