A Spinning Grinding WheelAt time t = 0 a grinding wheel has an angular velocity of 30.0rad/s. It has a constant angular acceleration of 34.0 rad/suntil a circuit breaker trips at time t = 2.10 s. From then on, thewheel turns through an angle of 436 rad as it coasts to a stop atconstant angular deceleration.Part AThrough what total angle did the wheel turn between t = 0 and the time it stopped?Express your answer in radians.> View Available Hint(s)radSubmitPart BAt what time does the wheel stop?Express your answer in seconds.> View Available Hint(s)SubmitPart CWhat was the wheel's angular acceleration as it slowed down?Express your answer in radians per second per second.> View Available Hint(s)MacBook Airesc888DIDDF1F2F3F4FSF6F7F8F9@%232$&*124678.9.QWEYUtabSHKs lockCVB NMRA4 View Available Hint(s)VΠ ΑΣφ?SubmitPart CWhat was the wheel's angular acceleration as it slowed down?Express your answer in radians per second per second.> View Available Hint(s)Πνη ΑΣφrad/sSubmitProvide FeedbackMacBook Airesc80888DIIDDF1F2F3F4F5F6F7F8F9@232$&1378.QWTYtabSFHKos lock

Answered: Image /qna-images/answer/5bf6ee5a-17cf-4a50-a131-3f7743e6f361.jpg

At time t = 0 a grinding wheel has an angular velocity of 30.0 rad/s. It has a constant angular acceleration of 34.0 rad/s until a circuit breaker trips at timet = 2.10 s. From then on, the wheel turns through an angle of 436 rad as it coasts to a stop at constant angular deceleration. Part A Through what total angle did the wheel turn between t = 0 and the time it stopped? Express your answer in radians. > View Available Hint(s)

At time t = 0 a grinding wheel has an angular velocity of 30.0 rad/s. It has a constant angular acceleration of 34.0 rad/s until a circuit breaker trips at timet = 2.10 s. From then on, the wheel turns through an angle of 436 rad as it coasts to a stop at constant angular deceleration. Part A Through what total angle did the wheel turn between t = 0 and the time it stopped? Express your answer in radians. > View Available Hint(s)

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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Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t1 = 11.6 seconds to get up to its full speed of f1 = 78 revolutions per minute. Case 2: The DJ then changes the speed of the turntable from f1 = 78 to f2 = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 12 times while accelerating uniformly. a. Calculate the magnitude of the angular acceleration of the turntable (in radians/second2) while increasing to 120 RPM (Case 2). b. How long (in seconds) does it take for the turntable to go from f1 = 78 to f2 = 120 RPM?
Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t1 = 11.6 seconds to get up to its full speed of f1 = 78 revolutions per minute.Case 2: The DJ then changes the speed of the turntable from f1 = 78 to f2 = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 13 times while accelerating uniformly. a. Calculate the angular speed described in Case 1, given as f1 = 78 revolutions per minute, in units of radians/second. b. How many revolutions does the turntable make while accelerating in Case 1? c. Calculate the magnitude of the angular acceleration of the turntable in Case 1, in radians/s^2. d. Calculate the magnitude of the angular acceleration of the turntable (in radians/s^2) while increasing to 120 RPM (Case 2). e. How long (in seconds) does it take for the turntable to go from f1 = 78 to f2 = 120 RPM?