Recent content by SEMonChron

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    Question on impulse, does it assume elastic collision?

    A problem I am working on for a project... Force required to hit a golf ball 76.2 m/s Does the impulse assume the collision is perfectly elastic? I am doing a problem on golf... mass of golf ball .0459 kg velocity of ball is 76.2 m/s time of interaction is .0005 seconds coefficient...
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    How Do You Calculate the Coefficient of Kinetic Friction in a Skiing Problem?

    bump to an old problem, but i am missing something big here. energy at the bottom of the hill is 1/2 * m * v^2 right? Initial Energy is mgh or 25787 or so, right? w = F * d, or uk*distance, right? plugging in the answers, energy at bottom of the hill is 10,951.2 so 10951.2 =...
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    Classical Dynamics prob, please.

    this is a major bump, but it is similar to a problem i have. would someone else explain this? where did (1,1,37) come from? i think it is easy, but i am just drawing a huge blank... and then the gradient of f is (fx, fy, fz) where fx is your dz/dx you needed to find to solve part a...
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