Posted by **Jeff** on Wednesday, December 15, 2010 at 12:01am.

A particle is moving around the unit circle (the circle of radius 1 centered at the origin). At the point (.6, .8) the particle has horizontal velocity dx/dt=3. what is its vertical velocity dy/dt at that point?

a)-3.875

b0-3.75

c)-2.25

d03.75

e)3.875

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