A wheel on a freight car carries a load W. If the axle of the car has

Question:

A wheel on a freight car carries a load W. If the axle of the car has a diameter D, determine the horizontal force P that must be applied to the axle to rotate the wheel. The coefficient of kinetic friction is μk.

Units Used:

kip = 1000 lb

Given:

W = 20 kip

D = 2 in

μ k = 0.05

r = 16 in

W P

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Engineering Mechanics Statics

ISBN: 978-0132215008

11 Edition

Authors: Russell C. Hibbeler

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Question Posted: Jun 11, 2010 10:10 PM

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A wheel on a freight car carries a load W. If the axle of the car has

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W P

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W 6 R Fx 0 0 Thus PR sin 0 ...View the full answer

Engineering Mechanics Statics

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