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Solving for Angular Velocity Acceleration

I need help with the following two questions. Please view the attachments to see the questions.


Solution Preview

a.) Because the line of motion of the machine component is the tangent to the circular pulley, hence,
angular velocity = w = v/r = 300/120 = 5/2 ...

Solution Summary

This solution is comprised of the calculations required to obtain the answers to the following questions which pertain to physics mechanics. A jpeg file attachment is also included for further clarification.