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newCh10_solutions

newCh10_solutions - acceleration so it will be greatest...

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P121 Ch 10 Homework Solutions page 1 of 2 10-1) 10-2) 10-3) a) Tangential acceleration: This is constant and in fact zero! The ball moves with constant speed, so the tangential acceleration is always zero. Radial acceleration: This is constant but not zero! Again, the ball moves with constant speed in a circle, so the radial acceleration must equal the famous centripetal acceleration formula, which is constant. Force from the rod: Largest at the bottom, smallest at the top. Why? At the bottom, the force of the rod must overcome gravity to provide the fixed product of mass times centripetal

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Unformatted text preview: acceleration, so it will be greatest here. It will also be a tension force, since the rod pulls the ball inwards. At the top, the force of gravity acts in the inwards direction to help provide the fixed mass times centripetal acceleration, so the rod will not have to provide as much force. Depending on the speed and radius, it could either be a tension or compression force (turns out to be tension also). Solution continued on next page P121 Ch 10 Homework Solutions page 2 of 2...
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newCh10_solutions - acceleration so it will be greatest...

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