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Answer to Question #144478 in Physics for hehsh
Question #144478
A 30.1 kg cart is rolling across a level surface at 12.5 m/s. Brakes are applied slowing the cart down to 10.0 m/s. Calculate work.
Expert's answer
"W=K_f-K_i\\\\W=0.5mv_f^2-0.5mv^2_i\\\\W=0.5(30.1)(12.5^2-10^2)=847\\ J"
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