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A boy of mass 40 kg is climbing on a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 and g = 10 m//s^(2), the horizontal force that he is applying on the pole is |
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Answer» 300 N LET F be horizontal force that the BOY is APPLYING on the pole. The various forces are acting on the boy as shown in the figure. FRICTIONAL force,f= μN= mg `N=(mg)/(mu)=(40xx10)/(0.8)=500N` F=N=500N 
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