Question

Consider the following two equations
(A) $L=I\omega$

(B) $\frac{dL}{dt}=\mathrm{\Gamma }$

In noninertial frames
(a) both A and B are true
(b) A is true but B is false
(c) B is true but A is false
(d) both A and B are false.

Answer 1

(b) A is true but B is false.

In non-inertial frames, $\frac{dL}{dt}={\Gamma }_{\mathrm{total}}$
Here, ${\Gamma }_{\mathrm{total}}$ is is the total torque on the system due to all the external forces acting on the system. So, equation (B) is not true as in non-inertial frames, pseudo force must be applied to study the motion of the object.