If a ladder weighing 250 N is placed against | vedclass

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(A) The ladder is placed against a smooth vertical wall,meaning there is no friction at the wall contact point.The weight of the ladder acts verticall

Vedclass · Accepted Answer

$75$

Vedclass · Answer

(A) The ladder is placed against a smooth vertical wall,meaning there is no friction at the wall contact point.The weight of the ladder acts vertically downwards,$W = 250 \ N$.The normal reaction force $R$ exerted by the floor on the ladder must balance the weight of the ladder in the vertical direction.Therefore,$R = W = 250 \ N$.The maximum force of static friction $f_{max}$ available at the contact point between the ladder and the floor is given by the formula $f_{max} = \mu R$,where $\mu$ is the coefficient of friction.Given $\mu = 0.3$ and $R = 250 \ N$,we have:$f_{max} = 0.3 	imes 250 \ N = 75 \ N$.

If a ladder weighing $250 \ N$ is placed against a smooth vertical wall and the coefficient of friction between the ladder and the floor is $0.3$,what is the maximum force of friction available at the point of contact between the ladder and the floor?

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