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workin_daily
Group Title
Ok, this is quite a big one.. I just need to know what formulas to use for certain parts of the question:
Matty the moth is on a turntable spinning at (2 3/8) rotations in 8 seconds. Bob is 11cm away from the center.
A)Find the angular displacement of Bob.
B)Find the angular velocity in rads per second.
C)Find the distance that Bob traveled in 8 seconds.
D)Find the linear velocity of Bob in cm per second.
 one year ago
 one year ago
workin_daily Group Title
Ok, this is quite a big one.. I just need to know what formulas to use for certain parts of the question: Matty the moth is on a turntable spinning at (2 3/8) rotations in 8 seconds. Bob is 11cm away from the center. A)Find the angular displacement of Bob. B)Find the angular velocity in rads per second. C)Find the distance that Bob traveled in 8 seconds. D)Find the linear velocity of Bob in cm per second.
 one year ago
 one year ago

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workin_daily Group TitleBest ResponseYou've already chosen the best response.1
I already have the answers, just need the formulas and/or some examples of what to do  studying.
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
\[\omega=\theta/t\] \[l=s/t\]
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
w is the angular velocity. l is the linear velocity. s is the arc length you can also make another equation for l by using those formula \[s=\theta r\]
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
so l is also \[l=\omega r\]
 one year ago

workin_daily Group TitleBest ResponseYou've already chosen the best response.1
Thanks for the help
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
also do not forget to convert revolutions (rev) to radians . theta should be in radians you can convert it by multiplying to 2pi
 one year ago

workin_daily Group TitleBest ResponseYou've already chosen the best response.1
\[\theta=revs \times2\pi rads\] Correct?
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
yes, do you know why it is correct ?
 one year ago

workin_daily Group TitleBest ResponseYou've already chosen the best response.1
1rev = 2πrads
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
correct :)
 one year ago

workin_daily Group TitleBest ResponseYou've already chosen the best response.1
I guess i have been paying enough attention in trig haha, thanks again
 one year ago

moongazer Group TitleBest ResponseYou've already chosen the best response.1
your'e welcome :)
 one year ago
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