Question

From the top of building 19.6m high,a ball Is projected horizontally. After how long does it strike the ground ? If the line joining the point of projected to the point,where hits the ground makes an angle of 45 degree with the horizontal,what is the initial velocity of the ball?

Answer 1

Answer:

T = (2h/g)

   = (2 x 19.6 m/(9.8 m/s2))

   = 2 s.

U = 19.6/2

   = 9.8 m/s^2

Hope this helps!