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Posted by: TheDerRitter
Posted by: MarkFanous
Posted by: TheDerRitter
Alright, I got the answer, but the answer in the book was in significant figures, so the answer was v=165m/s but the book said 1.7 x 10^2m/s.
My teacher said it's the same answer, and that the book worded it wrong.
we know it meant 170 m/s, but the equation doesnt give you 170 m/s, it gives you .52 or whatever
What? how did you get that?
109 J = 1/2*80000 v^2
109/40000=v^2
velocity = square root of 109/40000 = .052 m/s