Question

An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in 4.00 s. (a) Find the angular acceleration in rev/s$^2$ and the number of revolutions made by the motor in the 4.00-s interval. (b) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part (a)?

Name: an electric fan is turned off and its angular velocity decreases uniformly from 500 revmin to 200 revmin in 400 s a find the angular acceleration in revs2 and the number of revolutions made by the m 2
Uploaded: 2023-05-24T20:06:33-08:00
Duration: 2 min 29 s
Channel: Prabhu Ramji
Description: an electric fan is turned off and its angular velocity decreases uniformly from 500 revmin to 200 revmin in 400 s a find the angular acceleration in revs2 and the number of revolutions made by the m 2

          An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in 4.00 s. (a) Find the angular acceleration in rev/s$^2$ and the number of revolutions made by the motor in the 4.00-s interval. (b) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part (a)?

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University Physics with Modern Physics

Roger A. Freedman, Hugh D. Young 15th Edition

Chapter 9

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Solved by Expert Prabhu Ramji

05/24/2023

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An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in 4.00 s. (a) Find the angular acceleration in rev/s$^2$ and the number of revolutions made by the motor in the 4.00-s interval. (b) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part (a)?