Question

"the total angular momentum of an object changes when a net external force acts on the system." This statement is:
a)always true b) never true c) sometime true, it depends on the force's direction
d)sometime true, it depends on the force's point of application
I can cancel out b). I think the correct answer is a) it doesn't depend on the force's direction or point of application does it?

Answer 1

Here is the answer of the given question above. "The total angular momentum of an object changes when a net external force acts on the system." This statement is "sometimes true. it depends on the forces point of application". The answer is option D.