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March 26, 2017

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A child goes down a playground slide with an acceleration of 1.36 m/s^2.
1-Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 28.0 deg below the horizontal.

  • phy - ,

    force gravity down= mg sin28
    friction down: mg*mu*cos28

    netforce=mass*acceleration
    mg(sin28-mu*cos28)=ma

    solve for mu.

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