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!

Homework Help: Kinematics homework help

  1. Jul 4, 2005 #1
    A grinding wheel (radius 7.6cm) is rotating at 1750 rpm.
    (a) What i the speed of a point on the outer edge of the wheel?
    (b)What is the centripetal acceleration of the point?

    I do this question in this way:

    (a) f= 1750rpm = 29.167rps => T= 1/f = 0.03428

    v= (2"pie"r) / T
    = 13.93
    (sorry...I dont know how to key in "pie", can anyone teach me?)

    (b) a = (v^2) / r
    = 2553.2

    Am I right?
     
  2. jcsd
  3. Jul 4, 2005 #2
    Last edited: Jul 4, 2005
  4. Jul 4, 2005 #3
    without using TEX, u can also create the symbol π by typing "&" then "pi" then ";" (semicolon) like this: π
     
    Last edited: Jul 4, 2005
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...