6) A car is moving initially at 35 m/s and speeds up so that the 40-cm-diameter wheels have an angular acceleration of 2.5 rad/s². After the wheels rotate 110 revolutions, a) what is the angular speed of the wheels? b) what is the speed of the car?

6) A car is moving initially at 35 m/s and speeds up so that the 40-cm-diameter wheels have an angular acceleration of 2.5 rad/s². After the wheels rotate 110 revolutions, a) what is the angular speed of the wheels? b) what is the speed of the car?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter12: Rotation I: Kinematics And Dynamics

Section: Chapter Questions

Problem 69PQ: The propeller of an aircraft accelerates from rest with an angular acceleration = 4t + 6, where is...

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A space station is coast me ted in the shape of a hollow ring of mass 5.00 104 kg. Members of the crew walk on a deck formed by the inner surface of the outer cylindrical wall of the ring, with radius r = 100 m. At rest when constructed, the ring is set rotating about its axis so that the people inside experience an effective free-fall acceleration equal to g. (Sec Fig. P11.29.) The rotation is achieved by firing two small rockets attached tangentially to opposite points on the rim of the ring, (a) What angular momentum does the space station acquirer (b) For what time interval must the rockets be fired if each exerts a thrust of 125 N?
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