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lawsonfurther
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Homework Statement
A system has total angular momentum L about an axis O. Show that the system's angular momentum about a parallel axis O' is given by L'=L-h×p, where p is the system's linear momentum and h is a vector from O to O'.
Homework Equations
L=r×p or considering a mass element, Li=ri×pi
The Attempt at a Solution
See picture attached.
Or in other words, how do you know that the linear velocity of a mass element relative to an axis when undergoing a circular motion is exactly the same as the one relative to a parallel axis when undergoing another circular motion?
Is there any underlying assumption in this question which has not been pointing out?