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An 85.7 N box of clothes is pulled 26.2 m up
a 31.7

ramp by a force of 112 N that points
along the ramp.
The acceleration of gravity is 9.81 m/s
If the coefficient of kinetic friction between
the box and ramp is 0.24, calculate the change
in the box’s kinetic energy.
Answer in units of J

  • physics -

    ΔKE=ΔPE +W(fr)= m•g•s•sinα+μ•m•g•s•cosα=

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