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!

What's the final tangential velocity of the mill wheel?

  1. Nov 1, 2011 #1
    A mill wheel 400 kg and radius 2.50 m, with 8 blades diametrically opposed to each other of 3.00 kg each, is driven by a jet of water to a tangential velocity of 5.00 m / s. If a rock off 4 blades diametrically opposed, what will be the final tangential velocity of the treadmill? My question is: should take into account the inertial moment of the blades or is negligible for the resolution of this exercise?
     
  2. jcsd
  3. Nov 1, 2011 #2

    Chi Meson

    User Avatar
    Science Advisor
    Homework Helper

    This problem is not about what happens to the wheel when the blades broke off, rather what happens after they broke off. The loss of their mass will adjust the inertia of the entire wheel. Since there is no info about the size of the blades, I would assume that they are positioned at the given radius of the wheel, so the "new" wheel is 12 kg less massive. Figure out the new moment of inertia and proceed.

    There must be more information for this problem than you gave here.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: What's the final tangential velocity of the mill wheel?
Loading...