Subject: Physics    / General Physics

a man pulls a 14 kg sled 44 meters along an angels hill with a force of 95 N, which elevates the man 30 meters above the bottom of the hill. The man then hops on his sled and slides to the bottom of the hill back along his 44 meter path, during which a 296 N frictional force acts upon his sled. How much work in Joules does the man do against friction in pulling the sled up the hill?

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