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Sagot :
The time elapsed is 8.98 sec when it turns through the 220 radians.
given:
- initial angular velocity (ω°) = 0 rad/sec
- angular acceleration (α) =5.45 [tex]rad/sec^{2}[/tex]
- total angular displacement (Ф) = 220 rad
using second equation of motion for rotation
we get ,
[tex]220=0.t + \frac{1}{2}.5.45.t^{2}[/tex]
t^2 =80.98
t=8.98sec
therefore time elapsed is 8.98sec .
learn more about equation of rotation here:
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