Angular position, speed, and acceleration

AI Thread Summary
The discussion revolves around calculating the angular acceleration and the angle of rotation for a dentist's drill that starts from rest and reaches a speed of 2.52 x 10^4 rev/min after 3.30 seconds of constant angular acceleration. The user attempts to find the angular acceleration using the formula ωf = ωi + αt, resulting in an angular acceleration of 7636.36 rev/min². They also need to convert this value into rad/s² for proper unit consistency. Additionally, they are calculating the total angle of rotation using the formula θf = θi + ωit + (1/2)αt², but acknowledge that their answers are in incorrect units. The discussion highlights the importance of unit conversion in physics problems.
aaronb
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Homework Statement


A dentist's drill starts from rest. After 3.30 s of constant angular acceleration, it turns at a rate of 2.52 multiplied by 104 rev/min.

Find the drill's angular acceleration.

Determine the angle through which the drill rotates during this period

Homework Equations


\omegaf=\omegai+\alphat
\varthetaf=\vartheta<sub>i</sub>+\omegait+(1/2)\alphat2

The Attempt at a Solution



2.52x10^4=0+\alpha3.3=7636.36
\varthetaf=0+0+1/2=4150

I know the answers are in the wrong units so can someone tell me what to do change my rev/min into rad/s2 for the first part and to find rad for the second part?
 
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Thanks for the link LowlyPion it helped me a lot.
 
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