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 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 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 :

In a circus, a rider rides in a circular track of radius 'r' in a plane. The minimum velocity at the highest point of the track will be

The ride is circus rides along a circular track in a vertical plane. The minimum velocity at the highest point of the track will be

A fighter plane is moving in a vertical circle of radius 'r'. Its minimum velocity at the highest point of the circle will be

A fighter plane is moving in a vertical circle of radius 'r'. Its minimum velocity at the highest point of the circle will be

A particle is given a horizontal velocity u, from the point P on a smooth horizontal floor which has a vertical circular track at the end. ABC is a semicircular track of radius r in the vertical plane. If the path length PA is x = 3r and the particle returns to point P, then the initial speed of the particle is