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Physics, 04.01.2020 20:31 dogsarecute278

In 18.6 kg person climbs up a uniform ladder with negligible mass. the upper end of the ladder rest on a frictionless wall. the bottom of the ladder rest on a floor with a rough surface where the coefficient of static friction is 0.63. the angle between the horizontal and the ladder is theta. the person wants to climb up the ladder a distance of 1.6m along the ladder from the ladders foot. what is the minimum angle so that the person can reach the distance of 1.6m without having the ladder slip?

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