## DISCUSSION FORUM

### Angular momentum conservation

by Deleted user -
Number of replies: 5

in this question we have taken the angular momentum about the point c but we can see that there has been a torque acting during the collision which tends to rotate the body of mass M .    this could have been true when we have taken any point in the line of momentum of  mass m because then the toque about that point is 0 as the line of force passes through it . But as shown in figure we have taken the point C to observe the angular momentum because the toque is acting about the point C

### Re: Angular momentum conservation

by vishal deoarshi -

You can conserve angular momentum of rod + particle about any fixed pt in space

### Re: Angular momentum conservation

by Deleted user -
Is it true that this could only possible of we consider particle to be in our system then force during collision becomes internal and then torque becomes zero and angular momentum can be conserved then only

### Re: Angular momentum conservation

by TRAJECTORY EDUCATION -
here it is so. But there can be a case where the net force may be non zero, but still angular momentum canbe conserved

### Re: Angular momentum conservation

by Deleted user -

But then that force may produce some net  torque so how angular momentum conservation can be applied