how long does it take to fall (4.9-2.4)?
h=1/2 g t^2
t=sqrt (2*2.5/9.8)
how far does it go horizontlly?
d=vi*t
8=v*tabove
solve for v.
A man throws a ball horizontally from the top of a hill 4.9m high. He wants the ball to clear a fence 2.4m high, standing on a horizontal surface and 8m horizontally away from the point of projection. Find the minimum speed at which the ball must be thrown.
1 answer
1 answer