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An object in circular motion has its tangential velocity go down at a constant rate from 39.0 m/s to 15.0 m/s in 2.40 seconds. The circle it is going in has a radius of 20.0 meters. At the time its speed reaches 15.0 m/s

A) What is its centripetal (radial) acceleration?

B) What is the total acceleration?

C) What is the angle between its tangential acceleration and its total acceleration vector?

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