Maria is standing 4.5 meters from the tennis net. She hits the ball horizontally with a velocity of 18.0 m/s from a height of 1.20 meters. Will the ball clear the net, which has a height of 1.0 meters?

Question

This is a question from my hw. I was wondering if anybody could help me out. I might post more questions later on.

Answer 1

how long to the net: time=distance/velocity=4.5/18 seconds
How far does the ball fall in that time?
h=1/2 g t^2=4.9*(4.5/18)^2 in my head, about 5*(.4)^2=5*.16=.8 meters
work it out exact.
so final height 1.2-about .8 m=.4m Looks like it hit in the center of the net.

Work it out, I did it in my head.