Question

A ball is thrown from a point on ground at some angle of projection. At the same time a bird starts from a point directly above this point of projection at a height h horizontally with speed u. Given that in its flight ball just touches the bird at one point. Find the distance on ground where ball strikes

Answer 1

v cos θ = u

h = u^2 sin 2θ/ 2g

v sin θ= √2gh

R = (2usinθ ucosθ)/g

= 2√(2gh) u/g

=2u√(2h/g)