Question

two packages at ups start sliding down the 20 degrees ramp. package a has a mass of 4.5kg and a coefficient of friction of 0.2. package b has a mass of 8.5 kg and its coefficient of friction is 0.13. how long does it take package A to reach the bottom if the distance in 2m?

Feb 14, 2012

good

Nov 8, 2020

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