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March 26, 2017

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A student is skateboarding down a ramp that is 8.48 m long and inclined at 16.4° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 3.94 m/s. Neglect friction and find the speed at the bottom of the ramp.

  • physics - ,

    KE1 +PE = KE2
    m•v₀²/2 + m•g•h = m•v²/2
    v=sqrt(v₀² + 2•g•h) =
    = sqrt(v₀² + 2•g•s•sinα)

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