Angular Acceleration of a Blender
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Q: "The blades in a blender rotate at a rate of 7290 rpm. When the motor is turned off during operation, the blades slow to rest in 3.67 s. What is the angular acceleration as the blades slow down? The initial rotation is in the positive direction."
The OTA's solution is attached. We both got an answer of 208 rad/s^2.
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because,
<br>rotation speed = 7290 rpm = 7290/60 = 121.5 rps
<br>hince,
<br>initial rotation speed: wi = 121.5*2pi rad/s
<br>t = 3.67 ...
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