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A beam resting on two pivots has a length of L = 6.00 m and mass M = 91. The pivot under the left end exerts a normal force n1 on the beam, and the...

A beam resting on two pivots has a length of L = 6.00 m and mass M = 91.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance = 4.00 m from the left end exerts a normal force n2. A woman of mass m = 54.5 kg steps onto the left end of the beam and begins walking to the right as in the figure below.

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