What is the weight of the bar
A bar 5.0 m long has its center of gravity 1.5 m from the heavy end. If it is placed on the edge of a block 1.5 m from the light end and a weight of 750 N is placed on the bar at the light end, it will be balanced. What is the weight of the bar?
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Lori, who loves to ski, has rigged up a rope tow to pull herself up a local hill that is inclined at an angle of 30.0 degrees from the horizontal. The motor works against a retarding frictional force of 100 N. If Lori has a mass of 60.5 kg, and th
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