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Hauling Distance On Mine

A cart for hauling ore out of a gold mine has a mass of 423 kg, including its load.The cart runs along a straight stretch of track that is sloped 4.35 from the horizontal.A donkey, trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 4.00 102-n force for a distance of 143 m by means of a rope that is parallel to the ground and makes.

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