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A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts A and B in the figure. A 20 kg boy starts walking along the beam and stops 1.2 m from the right end of the besm. The beam does not tip. a) Draw a fully labelled force diagram for the beam b) Calculate the magnitude of the force exerted by the post B on the beam

A 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts A and B in the figure. A 20 kg boy starts walking along the beam and stops 1.2 m from the right end of the besm. The beam does not tip. a) Draw a fully labelled force diagram for the beam b) Calculate the magnitude of the force exerted by the post B on the beam

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A 40 k g , 5.0 -m-long beam is supported by, but not attached to, the two posts A and B in the figure. A 20 k g boy starts walking along the beam and stops 1.2 m from the right end of the besm. The beam does not tip. a) Draw a fully labelled force disgram for the beam b) Calculate the magnitude of the force exerted by the post B on the besm

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