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Finding m/s with revolutions and radius 
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#1
Nov606, 02:07 PM

P: 12

I am confused on how to find m/s in the following problem:
r = 2.6km one revolution of circle = 360s I need it for ac = v^2/r Thanks!, Mike 


#2
Nov606, 02:24 PM

P: 147

How many radians is 1 revolution?
How do you convert rad/sec to m/s? 


#3
Nov606, 02:46 PM

P: 12

Well one rev is always 2pi, so 2pi/360s ... I am unsure of how to convert that. I found one solution that tells me to use C = 2(pi)r and v = d/t, so d = 2(pi)(2600m)... so v = 2(pi)(2600m)/360s .... v = 45.4 m/s? Is this the best way to do the problem or am I making it too complicated?



#4
Nov606, 03:09 PM

P: 147

Finding m/s with revolutions and radius
That looks right to me.
Angular velocity w = 2 pi / 360, and v is rw that w is meant to be an omega 


#5
Nov606, 03:12 PM

P: 12

ah, I see. v = rw does seem a lot more simple than what I did though



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