From the the top of a tower 19.6 m high, a ball is thrown horizontally. If the line joining the
Channel: Doubtnut
Date: 28/01/2020

From the the top of a tower 19.6 m high, a ball is thrown horizontally. If the line joining the point of projection to the point where it hits the ground makes an angle of `45^(@)` with the horizontal, then the initial velocity of the ball is:-