- #1
Rose1996
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Homework Statement
A flat roof has a height of 65m above the ground. A tennis ball rolls off the edge of the roof and hits the ground at a point 418m horizontally from the edge of the roof.
A.) How much time is the ball in the air?
B.) What is the magnitude of the initial velocity?[/B]2. The attempt at a solution
I'm fairly positive that the answer to A is 3.64 seconds, but I'm having trouble understanding how to get the magnitude of the initial velocity and what it is exactly.