A child with mass 40. kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.4 rev/s in 10 s. What is the maximum friction force? 235.2 If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s? Enter yes or no. N no

A child with mass 40. kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.4 rev/s in 10 s. What is the maximum friction force? 235.2 If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s? Enter yes or no. N no

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 51P: A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis 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

red
wer
wer
A child with mass 40. kg sits on the edge of a merry-go-round at a
distance of 3.0 m from its axis of rotation. The merry-go-round
accelerates from rest up to 0.4 rev/s in 10 s.
What is the maximum friction force? 235.2
If the coefficient of static friction between the child and the surface
of the merry-go-round is 0.6, does the child fall off before 5 s? Enter
yes or no.
Answer 1:
235.2
240
Answer 2:
no
No
N
no

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