A merry-go-round (model it as a flat disk) is rotating with initial angularvelocity 0.50 rad/s and angular acceleration 0.20 rad/s2. What is the merry-go-round's angular velocity after 7.0 seconds?Pick the correct answerC 1.9 rad/sc -0.9 rad/s8.4 rad/s35 rad/s

Given data: Initial angular velocity (ωi) = 0.50 rad/s Angular acceleration (α) = 0.20 rad/s2 Time…

A merry-go-round (model it as a flat disk) is rotating with initial angular velocity 0.50 rad/s and angular acceleration 0.20 rad/s². What is the merry- go-round's angular velocity after 7.0 seconds? Pick the correct answer O 1.9 rad/s o -0.9 rad/s O 8.4 rad/s 35 rad/s

A merry-go-round (model it as a flat disk) is rotating with initial angular velocity 0.50 rad/s and angular acceleration 0.20 rad/s². What is the merry- go-round's angular velocity after 7.0 seconds? Pick the correct answer O 1.9 rad/s o -0.9 rad/s O 8.4 rad/s 35 rad/s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 39PE: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

A merry-go-round (model it as a flat disk) is rotating with initial angular
velocity 0.50 rad/s and angular acceleration 0.20 rad/s2. What is the merry-
go-round's angular velocity after 7.0 seconds?
Pick the correct answer
C 1.9 rad/s
c -0.9 rad/s
8.4 rad/s
35 rad/s

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