This problem deals with energy - kinetic energy and work done by friction.
A smooth circular hoop with a radius of 0.500 m is placed flat on the floor. A 0.400-kg particle slides around the inside edge of the hoop. The particle is given an initial speed of 8.00 m/s. After one revolution, its speed has dropped to 6.00 m/s because of friction with the floor.
(a) Find the energy transformed from mechanical to internal in the particle–hoop– floor system as a result of friction in one revolution.
(b) What is the total number of revolutions the particle makes before stopping? Assume the friction force remains constant during the entire motion.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Energy with Non-Conservative Forces concept. You can view video lessons to learn Energy with Non-Conservative Forces. Or if you need more Energy with Non-Conservative Forces practice, you can also practice Energy with Non-Conservative Forces practice problems.
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Based on our data, we think this problem is relevant for Professor Wijesinghe's class at ASU.
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Our data indicates that this problem or a close variation was asked in Physics for Scientists and Engineers - Serway Calc 9th Edition. You can also practice Physics for Scientists and Engineers - Serway Calc 9th Edition practice problems.