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Get Full Access to University Physics - 13 Edition - Chapter 5 - Problem 74p
Get Full Access to University Physics - 13 Edition - Chapter 5 - Problem 74p

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# A window washer pushes his scrub brush up a vertical

ISBN: 9780321675460 31

## Solution for problem 74P Chapter 5

University Physics | 13th Edition

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University Physics | 13th Edition

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Problem 74P

A window washer pushes his scrub brush up a vertical window at constant speed by applying a force as shown in Fig. The brush weighs 15.0 N and the coefficient of kinetic friction is ???k = 0.150. Calculate (a) the magnitude of the force and (b) the normal force exerted by the window on the brush. Figure:

Step-by-Step Solution:

Solution to 74P Step 1 Weight of the brush=15N Mass of the brush =15/9.8=1.53kg Coefficient of kinetic frictiok= = 0.15

Step 2 of 5

Step 3 of 5

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