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Angular momentum of the particle rotating with a central force is constant due to

a) constant force b) constant force is constant c) zero torque d) constant torque

1 Answer

When a body rotating with central force, the torque due to the force is zero.
$\overrightarrow{ \tau} = \overrightarrow{ r} \times \overrightarrow{ F}$ $\; \; \; (\because \overrightarrow{r} = 0)$
$\overrightarrow{\tau} = 0$
(c) option is correct.
answered Nov 28, 2013 by meena.p
edited Feb 28 by priyanka.c

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