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A uniform 7.7 m long ladder of mass 18 kg leans against a smooth all (so...

A uniform 7.7 m long ladder of mass 18 kg leans against a smooth all (so that the force exerted by the wall on the ladder is perpendular to the wall). The ladder makes an angle of 18 degrees with the vertical wall and the ground is rough. (a) Calculate the force exerted by the wall on the ladder. N (b) Calculate the x-component of the force exerted by the ground on the ladder at its base. N (c) Calculate the y-component of the force exerted by the ground on the ladder at its base. N (d) What is the minimum value of the coefficient of static friction between the ground and the ladder?

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