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Angular motion description, with angles in radians.

A disk starts from rest and accelerates at constant angular acceleration to 10 rev/sec in time t. While rotating through the next 60 revolutions, its speed increases to 15 rev/sec.
Part a. Find the angular acceleration in rad/sec^2.
Part b. Find T, the time required from 10 to 15 rev/sec.

Solution Preview

Part a. Step 1.
<br>Note: The first and necessary part of the solution is recognizing what the given information represents. Usually, you must name whatever parameters are given with letters or symbols used in general equations. Then you can see how the given parameters will give you the solution. In this ...