(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Calculate the centrepetal force required to rotate a3kg object in a circle at a radius of 3m at one revolution per second.

2. Relevant equations

MV2/r

2*pie*r

3. The attempt at a solution

First i presume i must convert the revolution per second into metres per second.

Calculate the circumference.

2*pie*r

2*pie*3

18.84955592153876m

Since its one revolution per second then it would mean:

18.84955592153876ms-1

Now for centrepetal force:

mv2/r

3*18.84955592153876 squared/3

1065.9172753176507952118585470128 / 3

Centrepetal force = 355.31N (2dp)

I hope this is right, the circular motion stuff still has never sunk in

Thanks, Joe

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# Homework Help: Calculating Centrepetal Force

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