Question

From the top of a building 20m high, a ball is pro-
jeeted 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 stone is (g-10ms)
​

Answer 1

Answer: 10sqrt(2) m/s

Explanation:

It is given in the file i have attached.