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Physics
If a 100 kg adult sits on a first class lever 2 meters away from the axis of rotation...how far back do I need to sit (145 lbs) to balance the lever?
1 answer
Mass = 145Lbs * 0.454kg/Lb = 65.8 kg.
65.8*d = 100*2.
d = 3.04 m.
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