A ball is thrown with the velocity u at an angle of `alpha` to the horizon. Find (i) the height of which the ball will rise to (ii) the distance x from the point of projection to the point where it reaches to the ground and (iii) the time during which the ball will be in motion (neglect the air resistance ).

Explanation

(i) `(u^(2) sin^(2) alpha)/(2g) `, (ii) `(u^(2) sin 2alpha)/(g)` (iii) `(2 u sin alpha)/(g)`