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a level physics question -circular motion

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1. Hey please help me with this question. In the equation a=v^2/r, when i increase the radius, the acceleration is decreased so acceleration is inversely proportional to the radius . However in the equation , a=w^2r, as increase the value of radius, the acceleration is also increasing. Where am I making the mistake ?
secondly, Using the equation v=wr , if I make r the subject r=v/w and then substitute it into the equation a=v^2/r, that gives me a=wv , will that be correct ?﻿
2. Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

You can also find the Exam Thread list for A-levels here and GCSE here.

Just quoting in Fox Corner so she can move the thread if needed
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