√(1/121) = √1 / √121 = 1 / 11 = <em>11⁻¹</em>
Negative number because -22
Answer:13 revolution
Step-by-step explanation:
Given data
Wheel initial angular velocity=18 rad/s
Contant angular deaaceleration=2
Time required to stop wheel completely=t sec
0 =18 +
t=9 sec
Therefore angle turn in 9 sec
=+
=+
=81rad
therefore no of turns(n) =
n=12.88913 revolution