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Centripetal Force Question 
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#1
Oct209, 03:00 PM

P: 13

1. The problem statement, all variables and given/known data
A skater holds her arms outstretched as she spins at 225 rpm. What is the speed of her hands if they are 152 cm apart? 3. The attempt at a solution I converted 225 rpm to 3.57 rps and found the angular velocity (23.56 rad/s) to plug into the equation v=wr, but it didn't work. What would that distance between her hands be considered? I bet this is rediculously easy but I can't figure it out! Thanks in advance! 


#2
Oct209, 03:06 PM

P: 671

As she spins, the tips of her hands trace out a circle, the diameter of which is the distance between her two hands.



#3
Oct409, 04:42 PM

P: 13

Ah thank you!



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