Question

Consider the following two equations

A)$L=I\omega$ and

B)$\frac{dL}{dt}=\Gamma$. 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

The correct option is B A is true but B is false

Angular momentum $L=Iw$

A rigid object's angular momentum is stated as follows :

• The cross product of the moment of inertia and angular velocity.
• It is considered as analogous to corresponding linear momentum.
• If there are no other external torque acts on the object, it is subject to the basic limitations of the angular momentum theory.

$\frac{dL}{dt}$= Total external force torque not equal to any torque.

So, $\frac{dL}{dt}$ = Γ is not correct.

Hence, option (b) A is true but B is false.