Circular Motion (1 Viewer)

[byakuya kuchiki]

having trouble getting the rpm - radians/sec process. someone help?

 

[gurmies]

From Rad/s to RPM:

Divide by 2pi

From RPM to Rad/s:

Multiply by 2p

 

[byakuya kuchiki]

thank you so much. XD
but i got a weird question here.
it says convert 20 rpm to radians per second, and the answer says 2pi/3.
i dunno, am i missing something here? >.<

 

[gurmies]

Not a problem =]

 

[cutemouse]

thank you so much. XD
but i got a weird question here.
it says convert 20 rpm to radians per second, and the answer says 2pi/3.
i dunno, am i missing something here? >.<

20 rev/min = 20/60 rev/sec = 1/3

Now 1 rev = 2pi

So 20 rev/min = 1/3 * 2pi = (2pi)/3 rad/s

 

[Oscar Croshaw]

wow. i didn't understand a word of that... i'm going into three unit math this year, hoping it goes well. i do like this stuff though...

 

[mitchy_boy]

wow. i didn't understand a word of that... i'm going into three unit math this year, hoping it goes well. i do like this stuff though...

Don't worry it only gets worse from here :]

But seriously I didn't understand a lot of this stuff, but once someone who knows what they're on about explains it too you you'll be fine.