Two packages at UPS start sliding down the 20 degree ramp shown in the figure. Package A has a mass of 7.00 kg and a coefficient of kinetic friction of 0.180. Package B has a mass of 12.0 kg and a coefficient of kinetic friction of 0.150.
How long does it take package A to reach the bottom?
F=ma (sorry but thats all I know for this question)
The Attempt at a Solution
I hate incline problems with a passion, and I have no idea how to start one. All I have done is draw free body diagrams for this question. I know you are supposed to apply Newton's second law, but it get confused when i do this on an incline question
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