A 200g toy car is placed on a narrow 30cm radiustrack with wheel grooves that keep the car moving in acircle. The 1kg track is free to turn on a frictionlessvertical axis. The spokes have negligible mass. Afterthe cars switch is turned on, it slowly reaches a steadyspeed of 0.75m/s, relative to the track. What is thetracks angular velocity?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter13: Rotation Ii: A Conservation Approach
Section: Chapter Questions
Problem 49PQ: A turntable (disk) of radius r = 26.0 cm and rotational inertia0.400 kg m2 rotates with an angular...
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A 200g toy car is placed on a narrow 30cm radius
track with wheel grooves that keep the car moving in a
circle. The 1kg track is free to turn on a frictionless
vertical axis. The spokes have negligible mass. After
the cars switch is turned on, it slowly reaches a steady
speed of 0.75m/s, relative to the track. What is the
tracks angular velocity?

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