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I Finding Friction Force on a Break Pad

  1. May 17, 2017 #1
    A 30-cm-diameter, 1.6 kg solid turntable rotates on a 1.4-cm-diameter, 450 g shaft at a constant 33 rpm. When you hit the stop switch, a brake pad presses against the shaft and brings the turntable to a halt in 15 seconds.

    How much friction force does the brake pad apply to the shaft?

    I am struggling with answering this problem and I am not too sure how to approach it.
     
  2. jcsd
  3. May 17, 2017 #2

    sophiecentaur

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    Hi
    This is a homework problem so please post it in the appropriate place. See the top of the Forum Page: "NO HOMEWORK Etc. Etc."
    There is a standard way to present your question which involves showing what you have done so far.
     
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