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A 2.0 kg wood block is launched up a wooden ramp

  1. Sep 25, 2006 #1
    A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 30 degree angle. The block's initial speed is 10 m/s. The coefficient of kinetic friction of wood on wood is .200

    1)What vertical height does the block reach above its starting point?
    2)What speed does it have when it slides back down to its starting point?

    can someone please help me :eek:
     
  2. jcsd
  3. Sep 25, 2006 #2
    i found the x and y component of the weight:
    wx=196sin(30) and wy is 196cos(30)

    im not sure where to go from here
     
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