a beam LO weighing 50N rests against a wall, the lower part of the beam extending 15 m from the base of the wall. Calculate the minimum value of the force F that can be applied to keep the beam in equilibrium. The coefficient of friction at L and O is 0.30
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Expert's answer
2021-01-26T13:15:50-0500
Answer
Let's assume that beam is making angle 45° with horizontal then
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