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A uniform beam resting on two pivots has a length L=6.00m and mass M =88.9kg. One...

A uniform beam resting on two pivots has a length L=6.00m and mass M =88.9kg. One pivot supports the left end of the beam and the second pivot is placed at distance ℓ=4.00m away from it. A woman of mass m=57.3KG steps onto the left end of the beam and begins walking to the right as in the figure below.

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Find the position x of the woman when the beam is about to tip. Define the origin (x=0) as the left edge of the beam.

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