Part A A wheel is rotating about an axis that is in the 2-direction. The angular velocity w; is -6.00 rad/s at t= 0, increases linearly with time, and is +4.00 rad/s at t= 19.0 s. We have taken counterolockwise rotation to be positive. Is the angular acceleration during this time interval positive or negative? • positive O negative Submit Previous Answers v Correct: The angular acceleration is positive, since the angular velocity increases steadily from a negative value to a positive value. Part B Part C How long is the time interval during which the speed of the wheel is decreasing? Express your answer with the appropriate units. HA Value Units ta = Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part D What is the angular displacement of the wheel from t= 0s to t= 19.0 s ? rad

Part A A wheel is rotating about an axis that is in the 2-direction. The angular velocity w; is -6.00 rad/s at t= 0, increases linearly with time, and is +4.00 rad/s at t= 19.0 s. We have taken counterolockwise rotation to be positive. Is the angular acceleration during this time interval positive or negative? • positive O negative Submit Previous Answers v Correct: The angular acceleration is positive, since the angular velocity increases steadily from a negative value to a positive value. Part B Part C How long is the time interval during which the speed of the wheel is decreasing? Express your answer with the appropriate units. HA Value Units ta = Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part D What is the angular displacement of the wheel from t= 0s to t= 19.0 s ? rad

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

Part A
A wheel is rotating about an axis that is in the 2-direction. The angular velocity w; is -6.00 rad/s
at t = 0, increases linearly with time. and is +4.00 rad/s at t= 19.0 s. We have taken
counterclockwise rotation to be positive.
Is the angular acceleration during this time interval positive or negative?
O positive
O negative
Submit
Previous Answers
v Correct
The angular acceleration is positive, since the angular velocity increases steadily from a negative value to a positive value.
Part B
Part C
How long is the time interval during which the speed of the wheel is decreasing?
Express your answer with the appropriate units.
O
ta =
Value
Units
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 3 attempts remaining
Part D
What is the angular displacement of the wheel fromt= 0s to t= 19.0 s ?
ΑΣφ.
rad

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