Physics Help Forum Speed of a ball falling.
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 Jan 8th 2009, 10:40 AM #1 Junior Member   Join Date: Jan 2009 Posts: 7 Speed of a ball falling. A punter on a football team kicks a punt 17 meters high into the air. How fast is it traveling when the return man catches the ball? Show all work.
Jan 8th 2009, 09:57 PM   #2
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 Originally Posted by ariol A punter on a football team kicks a punt 17 meters high into the air. How fast is it traveling when the return man catches the ball? Show all work.
I guess it should be vertically upward for the ball's motion, right?

If yes, then you may apply
$\displaystyle v^2-u^2=2as$
taking downward as positive
$\displaystyle v^2=2(10)(17)$

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