Question

If the angular momentum of a body is found to be zero about a point, is it necessary that it will also be zero about a different point?

Answer 1

Answer:

if torque is zero that means body rotates with constant angular velocity but is there a force MAINTAINING this constant angular velocity or is it just like inertia in linear motion ? ... the answer is no, there is no need to maintain a constant velocity (rotational or translational) with any force or torque.....

i hope it's help to you

Answer 2

Explanation:

• No, it is not necessary that the angular momentum of a body, zero at a point to be zero at another different point.  
• This is because, the angular momentum of a body depends on three main factors namely the position vector of the particle, angle between the radius vector and the linear velocity of the particle which varies from point to point.
• Thus, the angular momentum can have some finite value at some point even though it has zero value at some another point.