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asked Aug 20, 2017 171k views

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The work done is the loss of kinetic energy.

Loss of kinetic energy = m*(v1^2 - v2^2)/2 = 10 kg * [ (99m/s)^2 - (1m/s)^2]/2 = 49,000 J

JBoulhous answered Aug 26, 2017

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