Physics, 03.11.2020 03:50 gracetay3721

Two packages at UPS start sliding down the 20-degree ramp shown in the figure. Package A has a mass of 4.00 kg and a coefficient of kinetic friction of 0.180. Package B has a mass of 11.5 kg and a coefficient of kinetic friction of 0.170. How long does it take package A to reach the bottom?

Two packages at UPS start sliding down the 20-degree ramp shown in the figure. Package A has a mass

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