1. Limited time only! Sign up for a free 30min personal 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!

Centripetal Acceleration

  1. Jan 14, 2010 #1
    A ceiling fan is turning at a rate of 100 revolutions per minute. A spider is clinging to a blade. If he experiences a centripetal acc greater than 0.3g, he wil lose his grip and be flung off. How far from the centre can he safely go?

    I used: T = 60/100 = 0.6

    angular velocity = 2pi/T = 10pi/3

    a = (10pi/3)^2 * radius

    using a = 0.3g

    i get radius = 0.0268...

    But the answer is 1.05m?
  2. jcsd
  3. Jan 14, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Your answer looks right to me.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook