1.

Angular momentum of the particle rotating with a central force is constant due toA. constant torqueB. constatn forceC. constant linear momentumD. zero torque

Answer» Correct Answer - D
(d) We know that `vectau_c = (dvecL_c)/(dt)`
`where `vectau_c` torque about the center of mass of the body
and `vecL_c`= Angular momentum about the center of mass of
the body. Central forces act along the center of mass
Therefore torque about center of mass is zero.
`when vectau_c =0 then vecL_c = constt.`


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