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Physics

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In Fig. 6-21, a slide-loving pig slides down a certain 37° slide in twice the time it would take to slide down a frictionless 37° slide. What is the coefficient of kinetic friction between the pig and the slide?

  • Physics -

    down a frictionless slide: mg*SinTheta=ma

    down a friction slide: mgSinTheta-mu*mg*CosTheta=ma

    so if the time for friction is 2x, then its acceleration is half of the original a.

    mgSinTheta-mu*mg*CosTheta=1/2 *(sinTheta)mg

    solve for mu.

  • Physics -

    0.377

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