Assertion- If linear momentum of particle is constant, then its angular momentum about any axis will also remain constant
Reason-Linear momentum remains constant when net force is 0, angular momentum remains constant when net torque is zero
which of these statements is/are true? is the reason the correct explanation of the assertion or not?
The Attempt at a Solution
I took the example of a rod of length l, when two equal and opposite forces act on its ends the net force is zero but net torque about center is Fl. Therefore linear momentum is conserved but angular momentum is not but my textbook says both assertion and reason are true but reason is not correct explanation of assertion- I can't figure out how I'm wrong