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An 80 kg person climbs a 5 m long ladder that leans against a smooth wall...

An 80 kg person climbs a 5 m long ladder that leans against a smooth wall and makes an angle of 30 degrees with the wall. the mass of the ladder is 20 kg. what is the magnitude of the minimum friction force required between the floor and the ladder so the person can reach the top of the ladder? a)113 N b) 56.6 N c)566N d)509 N e)453 N

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Answer #1

Here we apply concept of static equilibrium and conditions for static equilibrium.

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