A 7 in diameter vinyl record is played at 75 rev/min. (1 in=2.54 cm).(a) What is the angular velocity of the record?(b) What is the linear velocity of a point halfway between the center and the edge of therecord?

Answered: A 7 in diameter vinyl record is played…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 54A

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Figure P10.16 shows the drive train of a bicycle that has wheels 67.3 cm in diameter and pedal cranks 17.5 cm long. The cyclist pedals at a steady cadence of 76.0 rev/min. The chain engages with a front sprocket 15.2 cm in diameter and a rear sprocket 7.00 cm in diameter. Calculate (a) the speed of a link of the chain relative to the bicycle frame, (b) the angular speed of the bicycle wheels, and (c) the speed of the bicycle relative to the road. (d) What pieces of data, if any, are not necessary for the calculations? Figure P10.16
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A 7 in diameter vinyl record is played at 75 rev/min. (1 in=2.54 cm). (a) What is the angular velocity of the record? (b) What is the linear velocity of a point halfway between the center and the edge of the record?