A window washer pushes his scrub brush up a vertical window at constant speed by applying a
Question:
a force F as shown in Fig. 5.65. The brush weighs 12.0 N and the coefficient of kinetic friction is μk = 0.150. Calculate (a) the magnitude of the force F and (b) the normal force exerted by the window on the brush.
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Related Book For
An Introduction To Mechanical Engineering
ISBN: 9781111576820
3rd Edition
Authors: Jonathan Wickert, Kemper Lewis
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