Posted by Ashley on Sunday, January 30, 2011 at 2:20pm.
A ball is thrown horizontally from the top of a building 55.4 m high. The ball strikes the ground at a point 65 m from the base of the building.
The acceleration of gravity is 9.8 m/s2 .
Find the time the ball is in motion in seconds.

Physics  bobpursley, Sunday, January 30, 2011 at 2:38pm
hf=hi+vi*t4.9t^2
solve for time. 
Physics  Ashley, Sunday, January 30, 2011 at 3:01pm
how do i solve for time when i don't know initial velocity?

Physics  Anonymous, Tuesday, December 16, 2014 at 8:03pm
dy(height)=1/2 times acceleration due to gravity(9.81) times time squared