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Question: A cart for hauling ore out of a gold mine has a mass of 403 kg, including its load. The cart runs along a straight stretch of track that is sloped 4.45° 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 389-n force for a distance of 189 m by means of a rope that is parallel to the ground and makes an angle of 13.9° with the track. The coefficient of friction for the cart\'s wheels on the track is 0.0179. use g = 9.81 m/s2.

Part A: Find the work that the donkey performs on the cart during this process?

Part B: Find the work that the force of gravity performs on the cart during the process?

Part C: Calculate the work done on the cart during the process by friction.

Show work or points will not be awarded. Thanks.

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  • Category:- Physics
  • Reference No.:- M91251378

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