Centripital acceleration help

  • Thread starter ttttrigg3r
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  • #1
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Homework Statement


There is a spinning disc. Object A sits R distance from center and object B sits R/2 distance away. VB=piR/T and VA=2piR/T


Homework Equations


Find the magnitude of the acceleration of object B. Assume that the cylinder makes one complete turn in a period of time .



The Attempt at a Solution


The answer is a=(2pi2R)/T2 .


From using centripital acceleration=v2/R , i got
ac=pi2R/T2

There is a coefficient of 2 that I am missing in my answer from the correct solution, but I have double checked. Am I using the wrong formula here? where did the 2 come from in the answer?
 

Answers and Replies

  • #2
49
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NVM. spent an hour on it and finally got it. Supposed to divide by R/2 not R
 

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