The figure shows two packages that start sliding down a 20° ramp from rest a distance d = 6.6 m 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? 
Definitions:
Continuous Change
A process where variables or conditions evolve over time without abrupt interruptions.
Discontinuous Change
Abrupt, non-linear transformations in development or processes that can significantly alter conditions or outcomes.
Lifespan
The maximum duration of life of a species, or the period during which an individual's physical and cognitive functions develop, mature, and decline.
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