Angular Acceleration: 0.29 rad/s/s

AI Thread Summary
The discussion centers on calculating angular acceleration given a dynamometer speed of 180 degrees per second reached in 0.18 seconds. The formula used is angular acceleration (a) = change in angular velocity (w) divided by change in time (t). The calculated angular acceleration is 16.67 degrees/s/s, which converts to 0.29 rad/s/s when adjusted for radians. Participants confirm the calculation's accuracy, with no significant issues raised. The solution appears to be correct.
PepperABLF12
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Homework Statement



If a dynamometer is set to move at 180 deg/s and it takes 0.18 seconds to reach that speed. What was the angular acceleration of the test arm in radians/s/s to get to that velocity? Give your answer rounded to two decimal places and do not include units in answer.

Homework Equations



angular acceleration (a) = change in angular velocity (w)/change in time (t)
a = w/t

The Attempt at a Solution



t = 0.18s
w = 180deg/s
a = ?

a = w/t
a = 180/0.18
a = 16.67

To find radians, 16.67/57.3 = 0.29 rad/s/s.

Is this correct?

Thank you for your help! :)
 
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Looks right to me.
 
Thank you!

Can anyone else see a problem with this?
 

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