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Lucmina Raymond
Answers (1)
Work = (force) x (distance) The worker does (50N) x (5m) = 250 joules of work. Friction eats up (43N) x (5m) = 215 joules of that energy, generating 215 joules of heat. The remaining (250J - 215J) = 35 joules of energy moves the box.
