Consider the following statements.
 A: A body is in translational equilibrium if the net force on it is zero. B: A body is in rotational equilibrium if the net torque about any point is zero.
Choose the correct statements:
 1 (A) only 2 (B) only 3 both (A) and (B) 4 neither (A) nor (B)
Subtopic: Â Rotational Motion: Dynamics |
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Given below are two statements:
 Assertion (A): For a body under translatory as well as rotational equilibrium, net torque about any axis is zero. Reason (R): Together $$\Sigma \vec{F}_{i}=0 \text { and } \Sigma\left(\vec{r}_{i} \times \vec{F}_{i}\right)=0$$ implies that $$\Sigma\left(\vec{r}_{i}-\overrightarrow{r_{0}}\right) \times \vec{F}=0$$.

 1 Both (A) and (R) are True and (R) is the correct explanation of (A). 2 Both (A) and (R) are True but (R) is not the correct explanation of (A). 3 (A) is True but (R) is False. 4 Both (A) and (R) are False.
Subtopic: Â Rotational Motion: Dynamics |
Â 74%
From NCERT
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