RK-2 A rotor turning at 500rev/min has a constant deceleration of 80.0rad/s until it comes to a stop. a) How many seconds does it take for the rotor to come to a stop? b) Thru how many revolutions did the rotor turn in coming to a stop?

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)...
icon
Related questions
Question

 I need the RK-2 Question Solution, not the first one. Please solve the RK-2 Question. 

AA-1 A constant torque applied to a rotor for 50.0s causes the rotor to reach a final rotational velocity of
12.5rev/min clockwise starting from rest. When the applied torque is removed, the torque due to friction
causes the rotor angular velocity to go from 12.5rev/min clockwise to 5.0rev/min clockwise in 35.0s.
a) Find the angular acceleration of the rotor in rad/s when it was increasing in speed.
b) Find the angular acceleration of the rotor in rad/s" when it was decreasing in speed.
c) Complete the following sentences.
1) When angular speed is increasing, the signs of o and a are
2) When angular speed is decreasing, the signs of o and a are
RK-2 A rotor turning at 500rev/min has a constant deceleration of 80.0rad/s until it comes to a stop.
a) How many seconds does it take for the rotor to come to a stop?
b) Thru how many revolutions did the rotor turn in coming to a stop?
99
66°F Mostly cloudy
CTION
Transcribed Image Text:AA-1 A constant torque applied to a rotor for 50.0s causes the rotor to reach a final rotational velocity of 12.5rev/min clockwise starting from rest. When the applied torque is removed, the torque due to friction causes the rotor angular velocity to go from 12.5rev/min clockwise to 5.0rev/min clockwise in 35.0s. a) Find the angular acceleration of the rotor in rad/s when it was increasing in speed. b) Find the angular acceleration of the rotor in rad/s" when it was decreasing in speed. c) Complete the following sentences. 1) When angular speed is increasing, the signs of o and a are 2) When angular speed is decreasing, the signs of o and a are RK-2 A rotor turning at 500rev/min has a constant deceleration of 80.0rad/s until it comes to a stop. a) How many seconds does it take for the rotor to come to a stop? b) Thru how many revolutions did the rotor turn in coming to a stop? 99 66°F Mostly cloudy CTION
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON