Auniform ladder of mass (m) and length (l) leans against a frictionless wall. if the coefficient of static friction between the ladder and the ground is 0.36, what is the minimum angle (î¸) between the ladder and the floor at which the ladder will not slip?

54.2°

Explanation:

forces are shown on  LADDER in equilibrium . applying both conditions of equilibrium we get the result.

see attachment

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