Asked by Bob
A ball is rolled off the flat roof of a 15-storey building that is 45 m above a playground. When will the ball strike the ground if you can ignore air resistance? If you believe that there is not enough information given, explain what is needed.
Answers
Answered by
bobpursley
hf=hi-1/2 g t^2
0=45-1/2 g t^2 solve for t
0=45-1/2 g t^2 solve for t
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