physics

A painter in a crate which hangs alongside a building, weighs 1000N.When the painter pull on the rope, the force he exerts on the floor of the crate is 450N. If the crate wieghs 250N, find the acceleration.

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  1. There is an upward force of 500 N on the crate plus painter, due to both ends of the rope he is pulling. There is a downward gravity force of 450 N, resulting in a net force of 50N up.

    a = Fnet/Mtotal = 50/(1250/g)= g/25

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  2. but the answer given is 2?

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  3. I don't understand how to find the resultant force, who can help me?

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