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forces on the wall and ground when leaning against a wall

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A woman who weighs 489 N is leaning against a smooth vertical wall, as the drawing shows.

(a) Find the force FN (directed perpendicular to the wall) exerted on her shoulder by the wall.

(b) Find the horizontal component of the force exerted on her shoes by the ground.

(c) Find the vertical component of the force exerted on her shoes by the ground.

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The solution is comprised of detailed explanantions of using moments to find the forces exerted on the shoulder and shoes by the wall and the ground respectively when leaning against a vertical wall.

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First we draw all the forces on the woman. There are totally four forces: the weight W it self, the horizontal force by the ball on the shoulder FN, the vertical component of the force on her shoes by the ground N, the horizontal component of the force on her shoes by ...

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