The second condition of equilibrium requires that the net external torque be:
AEver growing
BExactly zero
CVery large
DStraight up
Answer & Solution
Correct answer: B. Exactly zero
1. Any unbalanced torque would start rotation.
2. Equilibrium forbids that rotation too.
3. So the net torque must be exactly zero.
_Source: OpenStax University Physics Volume 1, Chapter 12, Static Equilibrium and Elasticity._
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