Posted by **HELP!!!!** on Saturday, March 19, 2011 at 4:37pm.

A particle is moving clockwise in a circle of radius 1.75 m. At a certain instant, the magnitude of its acceleration is

a =

a

= 39.0 m/s2,

and the acceleration vector has an angle of θ = 50° with the position vector, as shown in the figure. At this instant, find the speed,

v =

v

,

of this particle.

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