physics

How much force is needed to accelerate a 125 kg block up a 35 degree include at 3.4 m/s2 if the coefficient of friction is 0.28?

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asked by Marina
  1. net force up= F-gravitydown-friction

    = F-mgsinTheta-mg*mu*cosTheta

    so

    F-mgsinTheta-mg*mu*cosTheta= m*a
    solve for F

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