posted by sofi on .
A child throws a snowball with horizontal velocity of 18m/s directly toward a tree, from a distance of 9.0m and a height above the ground of 1.5m. if the time interval is 0.50s, at what height above the ground will the snow ballhit the tree
The horizontal distance to the tree is 9 m/18 m/s = 0.5 s, but they have already told you that.
During the itme of flight, the snowball falls vertically
H = (1/2) g t^2 = 4.9*0.5^2 = 1.23 m
The snowball started out 1.5 m above ground and ends up 1.5-1.23 = 0.27 m above ground