- #1

Philowns

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## Homework Statement

Orbital angular momentum L is given by L = mr x v

Linear and angular velocity are related by the eqn. v=w x r

Solve for L in terms of m, r, and w.

## Homework Equations

I was thinking of using Lagrange's formula. A x (B x C) = B(A*C)-C(A*B)

## The Attempt at a Solution

well I substituted for v first:

(L/m) = r x (w x r)

= w(r*r) - r(r*w)

I'm guessing that could be simplified, but I don't know how.

L = m[wr^2- r(r*w)] is the best I got.