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physics

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wo packages at UPS start sliding down the ramp shown in the figure. Package A has a mass of 4.50 and a coefficient of kinetic friction of 0.190. Package B has a mass of 10.5 and a coefficient of kinetic friction of 0.170.

  • physics (no question) - ,

    What is a wo package?
    What is the question?
    What are the units of mass?

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