- #1
Lisa...
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A particle moves in a circle that is centered at the origin. The particle has position r and angular velocity w. The velocity v is given by:
v = w x r (with x = the cross product).
My question is, when I calculate this crossproduct with
w= (d(theta)/dt) k and
r= x i + y j + z k
it gives:
(d(theta)/dt) * x j - (d(theta)/dt) * yi
Why does this denote the velocity?
v = w x r (with x = the cross product).
My question is, when I calculate this crossproduct with
w= (d(theta)/dt) k and
r= x i + y j + z k
it gives:
(d(theta)/dt) * x j - (d(theta)/dt) * yi
Why does this denote the velocity?