15. Rotational Equilibrium
Equilibrium with Multiple Objects
Multiple Choice
Multiple ChoiceA 20 kg, 5 m-long bar of uniform mass distribution is attached to the ceiling by a light string, as shown. Because the string is off-center (2 m from the right edge), the bar does not hang horizontally. To fix this, you place a small object on the right edge of the bar. What mass should this object have, to cause the bar to balance horizontally?
A
2 kg
B
4 kg
C
5 kg
D
10 kg
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