Problem 8.6 MasteringPhysics Problem 8.6 MasteringPhysics Problem 8.6 MasteringP

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Problem 8.6 MasteringPhysics Problem 8.6 MasteringPhysics Problem 8.6 MasteringPhysics Problem 8.6 MasteringPhysics 6 of 18 Problem 8.6 Problem 8.6 Tap image to zoom Part A What fraction of the horse's weight is borne by the front hooves? Express your answer using two significant figures. nfrontw = SubmitGive Up Part A What fraction of the horse's weight is borne by the front hooves? Express your answer using two significant figures. nfrontw = SubmitGive Up Part A What fraction of the horse's weight is borne by the front hooves? Express your answer using two significant figures. nfrontw = SubmitGive Up nfrontw = nfrontw = SubmitGive Up Continue nfrontw = 6 of 18 Problem 8.6 A horse weighs 5000 N. The distance between the front and rear hooves L1 = 1.8m and the distance from the rear hooves to the center of mass L2 = 1.1m for the horse are shown in Tap image to zoom Part A What fraction of the horse's weight is borne by the front hooves? Express your answer using two significant figures. nfrontw = SubmitGive Up

Explanation / Answer

Calculate the moment about either the front or the rear legs. Using the rear legs gives the answer directly.

? M = 0 = Ffront * 1.8m - 5000N * 1.1m ? Ffront = 3056 N
The fraction, then, is 3056N / 5000N = 0.61 = 61%

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