The Figure Shows Two Packages That Start Sliding Down a 20°

question 16

Multiple Choice

The figure shows two packages that start sliding down a 20° ramp from rest a distance along the ramp from the bottom.Package A has a mass of 5.0 kg and a coefficient of kinetic friction 0.20 between it and the ramp.Package B has a mass of 10 kg and a coefficient of kinetic friction 0.15 between it and the ramp.How long does it take package A to reach the bottom?

• A)2.7 s
• B)3.0 s
• C)3.2 s
• D)3.5 s

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