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9 August, 19:10

A 20.0 kg object is at rest, and then speeds up to 16.0 m/s. How much work was done on this system?

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  1. 9 August, 19:27
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    Work=Change in Kinetic Energy

    1/2mVf^2-1/2Vi^2=W

    1/2 (20) (16) ^2-1/2 (20) (0) ^2=W

    2560-0=W

    W=2560J
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