1 a 10-kg mass is moving with a speed of 50ms how much work, Ask an Expert

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1) A 10-kg mass is moving with a speed of 5.0m/s. How much work is required to stop the mass?

2) A wheel of diameter of 68.0cm slows down uniformly from 8.40m/s to rest over a distancce of 115m. How long does it take for the wheel to come to the stop?

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