Question

An object is in circulation motion at a speed of 308 rad/sec when it begins to...

An object is in circulation motion at a speed of 308 rad/sec when it begins to slow down at a constant rate of 2.2 radians per square second. How many rotations will the object make over the next 3.4 seconds? (Make sure your answer is the number of rotations.)

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Answer #1

Given

Initial angular velocity,  

Angular acceleration, ( SInce it is slowing down )  

Time ,

According to Newton's equations for angular motion,

Angular displacement,   

Substituting,

= 164.64 rotations

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