Two packages at UPS start sliding down the 20∘ ramp shown in the figure. Package A has a mass of 3.00 kg and a coefficient of kinetic friction of 0.220. Package B has a mass of 12.0 kg and a coefficient of kinetic friction of 0.170. How long does it take package A to reach the bottom?
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Two packages at UPS start sliding down the 20∘ ramp shown in the figure. Package A has a mass of 3.00 kg and a coefficient of kinetic friction of 0.220. Package B has a mass of 12.0 kg and a coefficient of kinetic friction of 0.170.
How long does it take package A to reach the bottom?
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