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camille
an automobile having a mass of 1.250 kg is traveling at 40m/s. what is its energy in kJ? how much work must be done to bring it to a stop?
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Answered by
Damon
(1/2)m v^2 = 625(1600) Joules
divide by 1000 for kJ
that is also the work to stop it in kJ
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