A bug of mass m_bug = 0.20 kg is sitting on your favorite record when you decide to turn on the record player. Your record is a solid disk of radius R = 15 cm and mass m disk = 0.70 kg. Your system revs up to a constant angular speed 2 revolutions per second. The bug is initially sitting at a distance R/2 = 7.5 cm, but being a thrill seeker decides to walk to the very edge of the record at radius R. What is the final Moment of Inertia for the system when the bug changes its position? Assuming that angular momentum is conserved, what is the final angular speed of the system when the bug has reached the edge? What is the bug's linear speed now?
A bug of mass m_bug = 0.20 kg is sitting on your favorite record when you decide to turn on the record player. Your record is a solid disk of radius R = 15 cm and mass m disk = 0.70 kg. Your system revs up to a constant angular speed 2 revolutions per second. The bug is initially sitting at a distance R/2 = 7.5 cm, but being a thrill seeker decides to walk to the very edge of the record at radius R. What is the final Moment of Inertia for the system when the bug changes its position? Assuming that angular momentum is conserved, what is the final angular speed of the system when the bug has reached the edge? What is the bug's linear speed now?
A bug of mass m_bug = 0.20 kg is sitting on your favorite record when you decide to turn on the record player. Your record is a solid disk of radius R = 15 cm and mass m disk = 0.70 kg. Your system revs up to a constant angular speed 2 revolutions per second. The bug is initially sitting at a distance R/2 = 7.5 cm, but being a thrill seeker decides to walk to the very edge of the record at radius R. What is the final Moment of Inertia for the system when the bug changes its position? Assuming that angular momentum is conserved, what is the final angular speed of the system when the bug has reached the edge? What is the bug's linear speed now?
3)A bug of mass m_bug = 0.20 kg is sitting on your favorite record when you decide to turn on the record player. Your record is a solid disk of radius R = 15 cm and mass m disk = 0.70 kg. Your system revs up to a constant angular speed 2 revolutions per second. The bug is initially sitting at a distance R/2 = 7.5 cm, but being a thrill seeker decides to walk to the very edge of the record at radius R. What is the final Moment of Inertia for the system when the bug changes its position? Assuming that angular momentum is conserved, what is the final angular speed of the system when the bug has reached the edge? What is the bug's linear speed now?
Definition Definition Product of the moment of inertia and angular velocity of the rotating body: (L) = Iω Angular momentum is a vector quantity, and it has both magnitude and direction. The magnitude of angular momentum is represented by the length of the vector, and the direction is the same as the direction of angular velocity.
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