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Re: Physics Quiz 9
Quote:
Originally Posted by seg9585
Should we assume the bowling ball is a solid sphere? Because as a league bowler I'm well aware they are not :-)
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Yes, you should assume that. 
Quote:
Originally Posted by James Kuszmaul
vf = -v / (.4 * r2 - 1)
Which looks really weird to me, so I have no idea if it is correct.
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Nope, not quite! You're making it a bit harder than it has to be by attempting to calculate from the forces themselves - rather, try to think of a way that you can find the answer simply by analyzing the system in two states only (initial, and final). Placement of the origin is crucial to simplifying the problem.
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Last edited by Oblarg : 15-12-2013 at 16:25.
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why re-invent the wheel when it still rolls? just make it better. - Tytus Gerrish [more] 
15-12-2013, 16:22
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