I need some help with a problem our professor handed out. Thanks in advance for any help.(adsbygoogle = window.adsbygoogle || []).push({});

A car is undergoing circular motion with a radius of 200m. Its initial speed is 3.00 m/s. The car moves so that its tangential acceleration is equal to its centripetal acceleration at all times. Calculate (a) its speed and (b) its centripetal acceleration 40.0 s later. (c) At what instant will the car's centripetal acceleration be equal to 9.80 m/s^2? (d) What will be its speed at that time.

The A sub t, and A sub c keeps tripping me up.

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# Homework Help: Circular motion help!

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