Feb 17, 2008

3/57

I'm not really sure what I'm doing wrong. I'm plugging into N - mg*cos(theta) = m(2*r_dot*theta_dot), but my answer doesn't match the book. I keep getting .77
at

2 comments:

  1. JoshFebruary 17, 2008 at 6:02 PM

    The problem gives you a weight of .2 lb. Make sure that you divide the weight by g(32.17ft/s^2) to get the mass.

    ReplyDelete
  2. Joel A. BuchananFebruary 17, 2008 at 10:18 PM

    Also, be sure that your r_dot value is negative.

    ~Joel

    ReplyDelete

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