7. A bar of mass M and length L=8 meters is pivoted on a fulcrum that is d= 2 meters away from the left end. Attached to
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7. A bar of mass M and length L=8 meters is pivoted on a fulcrum that is d= 2 meters away from the left end. Attached to
7. A bar of mass M and length L=8 meters is pivoted on a fulcrum that is d= 2 meters away from the left end. Attached to the left end, a mass m= 12 kg hangs at rest and keeps the system in equilibrium. What is the mass of the bar? m d M L
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