If a 60kgm, 6m long ladder is placed against a frictionlesswall at an angle 30de

Question

If a 60kgm, 6m long ladder is placed against a frictionlesswall at an angle 30degrees, what minimum coefficient of staticfriction with the floor allows a 50kgm person to climb 3/4up theladder before its likely to slip? a).280 b).355 c).402 d)none of these If a 60kgm, 6m long ladder is placed against a frictionlesswall at an angle 30degrees, what minimum coefficient of staticfriction with the floor allows a 50kgm person to climb 3/4up theladder before its likely to slip? a).280 b).355 c).402 d)none of these

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That doesn't make sense to me. Any other ideas?

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