A child is riding a merry-go-round that is turning at 3.60 rpm. If the child is standing 4.65 m from the center of the merry- go-round, how fast is the child moving? 0.556 m/s O 5.64 m/s 1.75 m/s 3.50 m/s O 1.80 m/s

A child is riding a merry-go-round that is turning at 3.60 rpm. If the child is standing 4.65 m from the center of the merry- go-round, how fast is the child moving? 0.556 m/s O 5.64 m/s 1.75 m/s 3.50 m/s O 1.80 m/s

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

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 30P: A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of...

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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 child is riding a merry-go-round that is turning at 3.60 rpm. If the child is standing 4.65 m from the center of the merry-
go-round, how fast is the child moving?
0.556 m/s
5.64 m/s
1.75 m/s
3.50 m/s
1.80 m/s

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