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Starting from rest, a 10.0 Kg suitcase slides down a 3.00m long ramp inclined at 30.0 degrees from the floor. The coefficient of friction between the suitcase and ramp is .35. A: what net force is applied to suitcase while it is on the ramp? B: what is the change in the kinetic energy of the suitcase as it slides down the ramp? C: how fast is it traveling when it reaches the bottom of the ramp?

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Harris

  1. Net force down=gravity-friction
    = mg*sinTheta-mg(mu)cosTheta

    changeKE=finalKE-initial KE
    = netforce*distance

    1/2 m vfinal^2=changeKE

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    bobpursley

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