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Two slides have different angles, find the numeric angle

  1. Sep 18, 2006 #1
    In a playground, two slides have different angles of incline theta1 and theta2 (theta2 > theta1). A child slides down the first at constant speed; on the second, his acceleration down the slide is a. Assume the coefficient of kinetic friction is the same for both slides. (a) Find a in terms of
    theta1, theta2, and g. (b) Find the numerical value of a for theta1 = 45° and theta2 = 61°.


    I hate to post and run, but my trig skills are HORRIBLY lacking in this arena. Can any of you offer tips for solving (a)? thanks
     
  2. jcsd
  3. Sep 18, 2006 #2
    since the first angle, theta1, resulted in no acceleration, what do we know about the forces involved?
     
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