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VITEEE 2022
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A particle of mass $$m$$ is allowed to fall freely under gravity from a point $$P$$ as shown in the figure. If the vector position $$Q$$ of the particle from the origin is represented by $$\mathbf{r}$$, the magnitude of torque acting on the particle at time $$t$$ with respect to the origin $$O$$ is.

VITEEE 2022 Physics - Rotational Motion Question 2 English

A
$$m g r$$
B
$$m g y$$
C
$$m g \sqrt{r^2-y^2}$$
D
$$m g r \sqrt{1-\left(\frac{r}{y}\right)^2}$$
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