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Rectilinear Motion Take-Home Exam - DEAD END!

  1. Apr 10, 2012 #1
    Hi everyone.

    I'm in crisis mode over this take-home exam I have due in 12 hours. I've posted the 4 problems I'm stuck on and ANY help would be a life-saver.

    I can get all of them setup, but am completely clueless as to how to actually execute them.


    I have a few questions in specific:

    [Question 2] To determine the minimum stopping distance, wouldn't I need to know the mass of the block in order to calculate the normal force and, by extension, the force due to static friction?

    [Question 5] ......what?
     

    Attached Files:

  2. jcsd
  3. Apr 10, 2012 #2

    ehild

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    Homework Helper
    Gold Member

    No. Express the normal force in terms of m. It will cancel.


    ehild
     
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