Calculate the normal force exerted by window on brush

Reference no: EM13561213

A window washer pushes his scrub brush up a vertical window at constant speed by applying a force as shown in the figure below.The brush weighs 12.7 N, θ =54.5° and the coefficient of kinetic friction isμ_k = 0.154.
a) Calculate the magnitude of the force .
b) Calculate the normal force exerted by the window on the brush.

Reference no: EM13561213

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