1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Uniform Circular Motion problem

  1. Dec 26, 2004 #1
    there's a 150 lb person on a rolling chair and moves in a circle when a motor with a rope attached on it is hooked up to the chair.

    If the radius of the circle is 7 ft, how much horsepower would the motor need to have to move the person at 1 m/s given that the friction coefficent is about 0.50.

    Can someone give me an idea on how I can try to find how many horsepowers it would take? Thanks
     
  2. jcsd
  3. Dec 26, 2004 #2
    You are required to find horsePOWER (*hint hint*). What do you know about power?
     
  4. Dec 26, 2004 #3
    oo power, i think that explains everything then. Just need to find how much work is being done to overcome friction over the time. thanks!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Uniform Circular Motion problem
Loading...