A 40-Kg Uniform Ladder That Is 5

question 61

Multiple Choice

A 40-kg uniform ladder that is 5.0 m long is placed against a smooth wall at a height of h = 4.0 m, as shown in the figure. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction with the ladder is 0.40. An 80-kg bucket is suspended from the top rung of the ladder, just at the wall. What is the magnitude of the force that the ladder exerts on the wall?

• A) 740 N
• B) 1300 N
• C) 980 N
• D) 900 N
• E) 1100 N

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