Answer:
The time taken by dryer to come up to speed of 4.1 rad/s is 0.95 s .
Step-by-step explanation:
Given :
Initial angular speed ,
.
Angular acceleration ,
.
We need to find how much time it takes to reach a speed of 4.1 rad/s .
Therefore , applying equation of motion .

The time taken by dryer to come up to speed of 4.1 rad/s is 0.95 s .