The angular velocity of a flywheel obeys the equation Wa(t) = A+ Bt?, where t is in seconds and A and B are constants having numerical values 2.65 (for A) and 1.40 (for B). For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Calculating angular acceleration.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 10P: A wheel 2.00 m in diameter lies in a vertical plane and rotates about its central axis with a...
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Please help w part E. Thanks

Re
The angular velocity of a flywheel obeys the equation
Wa(t) = A+ Bt, where t is in seconds and A
and B are constants having numerical values 2.65
(for A) and 1.40 (for B).
What is the angular acceleration of the wheel at t = 7.50 s?
Express your answer in radians per second squared.
For related problem-solving tips and strategies, you
may want to view a Video Tutor Solution of
Calculating angular acceleration.
az = 21.0 rad/s?
Submit
Previous Answers
v Correct
IDENTIFY: a (t)
dwz
Using wz = de/dt gives 0 – 0 = S wzdt
rtz
dt
Uti
SET UP: 4t" = nt"-1 and f t"dt :
1
dt
n+1
EXECUTE: For t =7.50 s, az = 21.0 rad/s2.
Part E
Through what angle does the flywheel turm during the first 1.80 s? (Hint: See Section 2.6 in the textbook.)
Express your answer in radians.
?
02 – 61 =
rad
Transcribed Image Text:Re The angular velocity of a flywheel obeys the equation Wa(t) = A+ Bt, where t is in seconds and A and B are constants having numerical values 2.65 (for A) and 1.40 (for B). What is the angular acceleration of the wheel at t = 7.50 s? Express your answer in radians per second squared. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Calculating angular acceleration. az = 21.0 rad/s? Submit Previous Answers v Correct IDENTIFY: a (t) dwz Using wz = de/dt gives 0 – 0 = S wzdt rtz dt Uti SET UP: 4t" = nt"-1 and f t"dt : 1 dt n+1 EXECUTE: For t =7.50 s, az = 21.0 rad/s2. Part E Through what angle does the flywheel turm during the first 1.80 s? (Hint: See Section 2.6 in the textbook.) Express your answer in radians. ? 02 – 61 = rad
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