Question

The propeller of an airplane has an initial angular speed of 3000 rad/s in the counterclockwise direction. It is shut off and slows at a rate of -80 rad/s^2. a) How long does it take for the engine to stop rotating? b) What is the engine's angular displacement while it stops? How far it goes around? c) What is the initial linear speed of a point on the engine that is 1.3 m from the center of the propeller?

Name: the propeller of an airplane has an initial angular speed of 3000 rads in the counterclockwise direction it is shut off and slows at a rate of 80 rads2 a how long does it take for the engine 89975
Uploaded: 2022-08-31T23:16:47-08:00
Duration: 2 min 35 s
Channel: Timothy James
Description: the propeller of an airplane has an initial angular speed of 3000 rads in the counterclockwise direction it is shut off and slows at a rate of 80 rads2 a how long does it take for the engine 89975

          The propeller of an airplane has an initial angular speed of 3000 rad/s in the counterclockwise direction. It is shut off and slows at a rate of -80 rad/s^2. 

a) How long does it take for the engine to stop rotating?
b) What is the engine's angular displacement while it stops? How far it goes around?
c) What is the initial linear speed of a point on the engine that is 1.3 m from the center of the propeller?

Added by Sandra G.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Timothy James

08/31/2022

Step 1

The formula for angular acceleration is: \[ \alpha = \frac{\Delta \omega}{\Delta t} \] where \[ \alpha \] = angular acceleration \[ \Delta \omega \] = change in angular speed \[ \Delta t \] = change in time Show more…

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The propeller of an airplane has an initial angular speed of 3000 rad/s in the counterclockwise direction. It is shut off and slows at a rate of -80 rad/s^2. a) How long does it take for the engine to stop rotating? b) What is the engine's angular displacement while it stops? How far it goes around? c) What is the initial linear speed of a point on the engine that is 1.3 m from the center of the propeller?