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Dynamics: Relative Motion Analysis

  1. Apr 1, 2016 #1
    1. The problem statement, all variables and given/known data

    If bar AB has an angular velocity of 6 rad/s, determine the velocity of the slider block C at the instant shown.

    2. Relevant equations



    3. The attempt at a solution

    vB=vA+wABxrB/A

    vA=0

    vB= -0.8485i+0.8485j

    So then C relative to B:
    vC=vB+wBCxrC/B
    -vCi= -0.8485i+0.8485j+0.25wBCi+0.433wBCj

    After equating i and j terms...
    Solved for wBC= -1.96 rad/s

    and vC=3.30 m/s

    The solution I'm looking at has 2.32 m/s as the answer! I'm not sure what I'm doing wrong!
     

    Attached Files:

  2. jcsd
  3. Apr 1, 2016 #2

    Simon Bridge

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    Please exaplain your reasoning for each step.
     
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