Question

A body is moving at a distance parallel to X-axis with a constant velocity. Its angular momentum about the origin
(A) Remains constant
(B) Increases
(C) Decreases
(D) May increase or decrease​

Answer 1

Consider a particle P moving parallel to X-axis.

Its angular momentum with respect to origin.

L=

r

→

×(m

v

→

)=mr

1

⋅v

All variables m,v and r

1

do not change.

∴L=constant

Answer 2

Answer:

option A remains constant