A nonuniform ladder is leaned against a frictionless wall. The ladder has a mass of 30...
A nonuniform ladder is leaned against a frictionless wall. The ladder has a mass of 30 kg, a length of 10.0 m, and makes a 60° angle with the ground. The coefficient of static friction between the ladder and the ground is 0.42. Assume g = 10.0 m/s^2
a. If a 75 kg firefighter is able to climb 90% of the way up the ladder before it begins to slip, where is the center of mass of the ladder located relative to the end resting on the ground?
b. It begins to rain, and the coefficient of static friction is reduced to 0.35. How far can the firefighter climb before the ladder begins to slip?
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A nonuniform ladder is leaned against a frictionless wall. The
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