Rotational motion homework question

AI Thread Summary
The problem involves a disk with a radial line that starts at -90° and undergoes constant angular acceleration for 3.1 seconds, reaching a final position of 130°. The goal is to find the angular speed of the disk after it completes one full revolution back to -90°. A calculation yielded an angular speed of 287.6785532, but the user is unsure how to convert this value to radians per second. The conversion involves multiplying the degree measure by π/180 to achieve the correct rad/s value.
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Homework Statement


A disk with a radial line painted on it is mounted on an axle perpendicular to it and running through its center. It is initially at rest, with the line at q0 = -90°. The disk then undergoes constant angular acceleration. After accelerating for 3.1 s, the reference line has been moved part way around the circle (in a counterclockwise direction) to qf = 130°.

Given this information, what is the angular speed of the disk after it has traveled one complete revolution (when it returns to its original position at -90°)?

|w| = rad/s

Homework Equations





The Attempt at a Solution



287.6785532 that's the answer i got, but i do not know how to convert it to rad/s
 
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