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Torque question?
A meter stick has a mass of 0.27 kg and balances at its center. When a small chain is suspended from one end, the balance point moves 30.0 cm toward the end with the chain. Determine the mass of the chain.
1 Answer
- Andrew SmithLv 72 years agoFavorite Answer
You can take torques around ANY convenient point.
I would take them around this new balance point.
The centre of mass of the stick is at a distance of +30 cm from this
the chain is at a distance of -20 cm from this
The torques must add to zero
so M* -20 + 0.27 * 30 = 0
M = 0.27 * 30 /20 = 0.41 kg
