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M1 Two packages at UPS start sliding down the 20∘ ramp shown in FIGURE P7.33. Package A has a mass of 5.0 kg and a coefficient of friction of 0.20. Package B has a mass of 10 kg and a coefficient of friction of 0.15 . How long does it take package A to reach the bottom? FIGURE P7.33

M1 Two packages at UPS start sliding down the 20∘ ramp shown in FIGURE P7.33. Package A has a mass of 5.0 kg and a coefficient of friction of 0.20. Package B has a mass of 10 kg and a coefficient of friction of 0.15 . How long does it take package A to reach the bottom? FIGURE P7.33

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  1. M1 Two packages at UPS start sliding down the 20 ∘ ramp shown in FIGURE P7.330. Package A has a mass of 5.0 k g and a coefficient of friction of 0.20 . Package B has a mass of 10 k g and a coefficient of friction of 0.15 . How long does it take package A to reach the bottom? FIGURE P7. 33

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