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Math Help - two mechanics problem

  1. #1
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    two mechanics problem

    1. a block with mass m slides on a horizontal surface. the block is intially at x=0 with velocity v0.

    the frictional force that the block experience is proportional to v^(3/2)

    such that
    F(v)=-kv^(3/2)

    for positive constant K. what is the max distance that the block travel?

    2. a particle of mass m is under the influences of a force F(x) that attracts the particle according to

    F(x) = -kx^(-2)

    where x is the distance from a fixed origin at x=0 and k is a positive constant

    if the particle is released from the rest at x=d, how long does it take to reach the origin?
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  2. #2
    MHF Contributor

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    These are the same problems you posted under "friction question".
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