College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A uniform cylindrical turntable of radius 1.80 m and mass 31.6 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 47 rad/s. The fixed turntable
bearing is frictionless. A lump of clay of mass 2.35 kg and negligible size is dropped onto the turntable from
small distance above it and immediately sticks to the turntable at
a point 1.70 m to the east of the axis.
(a) Find the final angular speed of the clay and turntable.
magnitude
rad/s
direction
counterclockwise
(b) Is mechanical energy of the turntable-clay system constant in this process?
O Yes
O No
What, if any, is the change in internal energy?
J
(c) Is momentum of the system constant in this process?
O Yes
O No
What, if any, is the amount of impulse imparted by the bearing?
magnitude
kg • m/s
direction
north
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Transcribed Image Text:A uniform cylindrical turntable of radius 1.80 m and mass 31.6 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 47 rad/s. The fixed turntable bearing is frictionless. A lump of clay of mass 2.35 kg and negligible size is dropped onto the turntable from small distance above it and immediately sticks to the turntable at a point 1.70 m to the east of the axis. (a) Find the final angular speed of the clay and turntable. magnitude rad/s direction counterclockwise (b) Is mechanical energy of the turntable-clay system constant in this process? O Yes O No What, if any, is the change in internal energy? J (c) Is momentum of the system constant in this process? O Yes O No What, if any, is the amount of impulse imparted by the bearing? magnitude kg • m/s direction north
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