Problem 10E
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/s2 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)?
Step-by-Step Solution:
Solution 10E Problem (a) Step 1: Initial angular velocity = 500 rev/min or 8.33 rev/s 0 Final angular velocity = 200 rev/min or 3.33 rev/s Time taken t = 4s
Step 2 of 2
