A body initially at rest and sliding along a frictionless track from a height $h$ (as shown in the figure) just completes a vertical circle of diameter $A B = D$ . The height $h$ is equal to,

Question

A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure) just completes a vertical circle of diameter A B = D . The height h is equal to,

Aicharya · Accepted Answer

To just complete a vertical circle, speed at A should be v A = 5 g R Using energy conservation m g h = 1 2 m v A 2 h = 1 2 v A 2 g = 1 2 5 g g D 2 R = D 2 h = 5 D 4

A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure)…

Solution