A 12 meter long uniform ladder is leaning against a, Physics

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A 12 meter long uniform ladder is leaning against a

A 12 meter long uniform ladder is leaning against a frictionless wall at an angle of 50o above the horizontal. The ladder has 30 kilogram mass. When a 45 kilogram boy is standing 5 meter up along the ladder, obtain the magnitude of the force exerted by ladder on wall?

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