Drag the positive or negative feedback loop on the left to each process on the right. terms may be used once, more than once, or
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Answer:
The tub of the washer does 37.5 revolutions while it is in motion.
Explanation:
At first we assume that the tub accelerates and decelerates uniformly. In this case, it is required to determine the number of revolutions done by the tub by means of the following equations of motion:
Acceleration
(Eq. 1)
Where:
- Angular acceleration experimented by the tub, measured in revolutions per square second.
,
- Initial and final angular velocities of the tub, measured in revolutions per second.
- Acceleration time, measured in seconds.
(Eq. 2)
Where is the change in angular position of the tub during acceleration, measured in revolutions.
Deceleration
(Eq. 3)
Where:
- Angular acceleration experimented by the tub, measured in revolutions per square second.
,
- Initial and final angular velocities of the tub, measured in revolutions per second.
- Deceleration time, measured in seconds.
(Eq. 4)
If we know that ,
,
,
and
, then the amount of revolutions done by the tub during each phase is, respectively:
(Eq. 1)
(Eq. 3)
(Eq. 2)
(Eq. 4)
The total amount of revolutions done by the tub while it is in motion is:
The tub of the washer does 37.5 revolutions while it is in motion.