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  1. A 12.0 m ladder, whose mass is 20 kg, is leaning against a wall , with its base 6.0 m from the wall and at a slope of 60 degrees to the floor. Because both the wall and floor are frictionless, a rope is tied horizontally 0.5 m from the bottom of the ladder to the wall. A 72 kg plasterer climbs 3/4 of the way up the ladder and stops. What is the tension in the rope and what are the reactive forces at the wall and the floor?

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