# In which direction is the acceleration directed in a non uniform circular motion?

Acceleration is directed towards the center of the circle in a uniform circular motion. Is it same for the non-uniform circular motion?

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If the tangential velocity component is changing then there will be an additional component to the acceleration in the tangential direction. The acceleration is $\vec{a}=\mathrm{d}\vec{v}/\mathrm{d}t$, so if you know the velocity as a function of time and how to take derivatives you can work it out for your particular case. – Michael Brown Jan 19 '13 at 9:59