Posted by viyanah on .
1. A baseball rolls off a 0.80 m high desk and strikes the floor 0.25 m away from the base of the desk. How fast was the ball rolling?

physics 
bobpursley,
time to fall .8 meters first.
h=1/2 g t^2 solve for t.
then that is also the time the ball moved horizontally, or velocity=.25/t