The discussion focuses on calculating the angular acceleration of a propeller that decelerates from 450 revolutions per minute (rev/min) to 200 rev/min over a time span of 3.50 seconds. The relevant equations include the average angular acceleration formula, \(\vec{\alpha}_{ave}=\frac{\Delta\vec{\omega}}{\Delta t}\), and the conversion of rev/min to radians per second, \(\frac{1 \text{ rev}}{\text{min}}=\frac{\pi \text{ rad}}{30 \text{ s}}\). The solution involves determining the change in angular velocity and dividing it by the time interval to find the angular acceleration.
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itsmarasilly said:Homework Statement
A propeller slows from 450 rev/min to 200 rev/min in 3.50 s. What is its angular acceleration?
Homework Equations
ac = v^2/r
and v = rw
The Attempt at a Solution
I know this is probably a simple problem, but what do the variables in the relevant equations refer to?