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10 August, 04:32

Consider a no-friction 5.0 kg skateboard on a 15 degree ramp. If a 45 kg teenager jumps on, what would be her acceleration down the ramp? __m/s^2

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  1. 10 August, 07:18
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    The acceleration should just be the component of gravity down the ramp.

    Gravity acts 9.8 m/s2 downward but this is on a 15 degree slope.

    9.8*cos (15degrees) = a

    a=9.4m/s2
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