physics

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A skateboard with mass M rolls down a ramp, starting from rest. It takes time T to roll a distance L along the ramp. In terms of M, T, and L, what is the skateboard’s acceleration down the ramp?

  • physics -

    M is irrelevant

    at acceleration a, v = a T

    L = (1/2) a T^2


    a = 2 L/T^2

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