This is the goal of the next part of the practical

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Unformatted text preview: include the effects of friction in your prediction you wouldn’t have had a good idea of how to do it. On the other hand, if it turned out the outcome of the experiment was consistent with the prediction you still need to evaluate how reasonable the assumption about the friction force is. Here’s why: The situation could be even more complicated: It is possible that 1) the assumption is NOT reasonable, AND 2) the hypothesis does NOT apply in this situation. But, these two effects might cancel each other enough to produce the illusion of the prediction and outcome being consistent! The only way to avoid this situation is to evaluate the assumption. In either case, the issue of how reasonable the assumption about friction is needs to be dealt with. This is the goal of the next part of the practical. You’ll return to complete this testing experiment at the end of the practical. II. Interlude A lab group at another school has done an observation experiment to investigate rolling friction. They have discovered that a reasonable model for the rolling friction force exerted by a smooth firm surface on a smooth firm circul...
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This note was uploaded on 12/27/2012 for the course PHYSICS 193 taught by Professor Gentile during the Fall '09 term at Rutgers.

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