Answer:
The time taken by dryer to come up to speed of 4.1 rad/s is 0.95 s .
Explanation:
Given :
Initial angular speed , [tex]\omega_i=0\ rad/s[/tex] .
Angular acceleration , [tex]\alpha=4.3\ rad/s^2[/tex] .
We need to find how much time it takes to reach a speed of 4.1 rad/s .
Therefore , applying equation of motion .
[tex]\omega_f-\omega_i=\alpha\times t\\\\4.1-0=4.3\times t\\\\t=\dfrac{4.1}{4.3}\ s\\\\t=0.95\ s[/tex]
The time taken by dryer to come up to speed of 4.1 rad/s is 0.95 s .
