Question

On a smooth curved track shown in the diagram, an small particle is projected from the point O such that it just manages to reach the point P. Assume that particle always remain contact with track. The velocity of the particle on reaching the point P will be equal to :

Answer 1

Correct option (D)

Explanation:

The velocity at O be such that it should reach the height 3H. From there it will come down to height H. Hence velocity at P is :

v² = 2g.2H ⇒ v = √(4gH).