show that the angular momentum about any point of a single particle moving with constant velocity remains constant throughout the motion
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Step-by-step explanation:
Our aim is to show that angular momentum always remains the same.
Let t be any time, suppose that vector v is at P.
We get momentum:
L = r x p = r x m.v
I L I = r.m.v x sin (theta)
Where theta is the smaller angle between vector r and vector v.
From the figure bellow, r.sin(theta) = OK, and it is the same perpendicular distance of O from the line of motion.
We can see that r.sin(theta) remains constant. Then I L I is constant and also vector L always remains the same in magnitude and direction.
I hope this helps your studies! Keep it up!
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