Remember, the perimeter of a rectangle is twice the length plus twice the width. Use w to represent the width.
2 answers:
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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