A daring skateboarder stands atop a 16 m radius quarter-pipe skateboard ramp, contemplating the meaning of life. Given that the combined mass of the board and rider is 80 kg, calculate A) the skateboard velocity at the bottom of the ramp, assuming no friction, and B) the velocity at the bottom of the ramp if friction caused by a faulty wheel does -2500 J of work on the skateboard from the top of the ramp to the bottom.
A daring skateboarder stands atop a 16 m radius quarter-pipe skateboard ramp, contemplating the meaning of life. Given that the combined mass of the board and rider is 80 kg, calculate A) the skateboard velocity at the bottom of the ramp, assuming no friction, and B) the velocity at the bottom of the ramp if friction caused by a faulty wheel does -2500 J of work on the skateboard from the top of the ramp to the bottom.
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Transcribed Image Text:A daring skateboarder stands atop a 16 m radius quarter-pipe skateboard
ramp, contemplating the meaning of life. Given that the combined mass
of the board and rider is 80 kg, calculate A) the skateboard velocity at
the bottom of the ramp, assuming no friction, and B) the velocity at the
bottom of the ramp if friction caused by a faulty wheel does -2500 J of
work on the skateboard from the top of the ramp to the bottom.
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