A particle moves in a circle that is centered at the origin. The particle has position(adsbygoogle = window.adsbygoogle || []).push({}); rand angular velocityw. The velocityvis given by:

v=wxr(with x = the cross product).

My question is, when I calculate this crossproduct with

w= (d(theta)/dt)kand

r= xi+ yj+ zk

it gives:

(d(theta)/dt) * xj- (d(theta)/dt) * yi

Why does this denote the velocity?

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# Homework Help: Update To My Problem On Vectorcalculus

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