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forces on the ground and on the wall by the ladder

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3. a 12 ft ladder that weighs 50 lb rests against a frictionless wall at a point 10 ft above the ground. How much force does the ladder exert (a) on the ground and (b) on the wall?

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The solution shows detailed steps on how to find out the force exerted by the ladder on the ground and the wall, respectively.

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