A cart for hauling ore out of a gold mine has a mass of 431 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.85° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 445 N force for a distance of 185 m by means of a rope that is parallel to the slope but makes an angle of 14.9° with the track. Model the rolling resistance of the cart as though it were sliding on the track with a coefficient of friction of 0.0173. Use g = 9.81 m/s², and note that angle A in the image is the angle of the incline while angle B is the angle the rope makes with the track.

A cart for hauling ore out of a gold mine has a mass of 431 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.85° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 445 N force for a distance of 185 m by means of a rope that is parallel to the slope but makes an angle of 14.9° with the track. Model the rolling resistance of the cart as though it were sliding on the track with a coefficient of friction of 0.0173. Use g = 9.81 m/s², and note that angle A in the image is the angle of the incline while angle B is the angle the rope makes with the track.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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