1.

A 5 m long ladder is resting on a smooth vertical wall with its lower end 3 m from the wall. What should be the coefficient of friction between the ladder and the floor for equilibrium?

A. \(\frac{1}{2}\)
B. \(\frac{3}{8}\)
C. \(\frac{1}{3}\)
D. \(\frac{3}{5}\)
Answer» C. \(\frac{1}{3}\)


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