Question

For rotational equilibrium,

• A. $\displaystyle\sum_{i=1}^{n} F _{i \text { net }}=0$
• B. $\displaystyle\sum_{i=1}^{n} \tau_{i\text{ net} }=0$
• C. Both (a) and (b) are the necessary conditions for the rotational equilibrium
• D. Both (a) and (b) are not necessary for rotational equilibrium

Answer 1

Answer: (B)

Correct answer is (b) $\displaystyle\sum_{i=1}^{n} \tau_{i\text{ net} }=0$