Wednesday
April 16, 2014

Homework Help: Physics

Posted by Bex on Tuesday, February 3, 2009 at 8:01pm.

a bowling ball is thrown down from the top of a building at 20 m/s. Find the distance the ball travels in
A) 1 s
B) 3 s

should I make the 20 m/s negative? I'm assuming the ball is just being thrown stright down...

I'm using the formula d=V(initial)*t+1/2a*t^2

I'm getting -24.9 for a and -104.1 for b if I assume that 20 m/s is negative. I just really need someone to clear this up for me. please and thank you.

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