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 :

Figure shows a block A of mass 6 m having a smooth semicircular groove of radius a placed on a smooth horizontal surface. A block B of mass m is released from a position in groove where its radius is horizontal. Find the speed of the bigger block when the smaller block reaches its bottom most position.

Figure shows a block A of mass 6 m having a smooth semicircular groove of radius a placed on a smooth horizontal surface. A block B of mass m is released from a position in groove where its radius is horizontal. Find the speed of the bigger block when the smaller block reaches its bottom most position.

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

A small box of mass m is kept on a fixed, smooth sphere of radius R at a position where the radius through the box makes an angle of 30^(@) with the vertical. The box is released from this position (a) What is the force exerted by the sphere on the box just after the release ? (b) Find the distance travelled by the box before it leaves contact with the sphere.

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

In the track shown in figure -3.94 section AB is a quadant of a circle of 1 metre radius in vertical plane. A block is released at A and slides without friction until it reaches at B. After B it moves on a rough horizontal floor and comes to rest at D, 3 metres from B the coefficient of friction between floor and the body will be :