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6) A 0.5 kg cart initially going with v=2 m/s goes down on an inclined plane...

6) A 0.5 kg cart initially going with v=2 m/s goes down on an inclined plane with 10 meters height. Inclined plane makes 30 degrees with the x-axis.
a) What is the velocity of the block at the bottom of the ramp if friction is negligible
b) What is the velocity if coefficient of friction is mu=0.1
vi = 2m/s

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