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The magnitude of the centripetal acceleration is:

Av squared times R
BR squared times v
Cv squared over R
DR squared over v
Answer & Solution
Correct answer: C. v squared over R
1. It depends on the speed and the radius. 2. The magnitude is v squared divided by R. 3. It is always directed towards the centre. _Source: syllabus Physics Part I, Ch 4 'Motion in a Plane'_
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