Question

From the top of a building 19.6 m high, a ball
projected horizontally. After how long does it strike
the ground ? If the line joining the point of
projection to the point where it hits the ground
makes an angle of 45° with the horizontal, what is
the initial velocity of the ball ? (Ans. 2 s, 9.8 ms )​

Answer 1

Answer:

2 sec

Explanation:

we know that,

t=√2h/g

t=√2*19.6/9.8

t=2 sec

Answer 2

Refer The Attachment ⬆️

Hope It Helps You ✌️