lecture15_notes

# lecture15_notes - floor by a force F pull =10 N applied at...

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A ball of mass m is swung at the end of the rope in a horizontal circle . Its speed v is constant and the length of the rope is L . What work W is done by the tension T in the rope when the mass moves a small distance s along the circle? L s v W = ? A. mg s B. T s C. T L D. 0

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10 kg F pull =10 N 10 ° 10 m A 10 kg crate is pulled 10 m along a frictionless horizontal

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Unformatted text preview: floor by a force F pull =10 N applied at an angle of 10 ° with respect to the horizontal, as shown. What is the net work done on the crate by all the forces that act on it? W net = ? A. 100 cos 10 ° J B. 100 sin 10 ° J C. 1000 J+ 100 sin 10 ° J D. 1000 J+ 100 cos 10 ° J...
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## This note was uploaded on 02/20/2008 for the course PHYS 2207 taught by Professor Liepe, m during the Fall '07 term at Cornell.

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lecture15_notes - floor by a force F pull =10 N applied at...

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