A person carries a plank of wood 2.0 m long with one hand pushing down on it at one end with a force F1 and the other hand holding it up at 50 cm from the end of the plank with force F2.   f the plank has a mass of 19 kg and its center of gravity is at the middle of the plank, what is the force F2, in newtons?    If the plank has a mass of 19 kg and its center of gravity is at the middle of the plank, what is the force F1, in newtons?

College Physics
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ISBN:9781938168000
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Chapter9: Statics And Torque
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A person carries a plank of wood 2.0 m long with one hand pushing down on it at one end with a force F1 and the other hand holding it up at 50 cm from the end of the plank with force F2.

 

f the plank has a mass of 19 kg and its center of gravity is at the middle of the plank, what is the force F2, in newtons? 

 

If the plank has a mass of 19 kg and its center of gravity is at the middle of the plank, what is the force F1, in newtons?

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