3. A playground merry-go-round of radius 1.5 meters. The child applies a 2.5 constant force of F, =50 Newtons to the rim. There is a frictional torque of 35 Nm opposing the rotation. The graph shows a plot of the resulting angular velocity of the merry-go-round as a function of time. 2 1.5 0.5 Fo 2 time (s) view from above a. What is the torque due to the force F, (take ccw as positive)? b. What is the moment of inertia of the merry-go-round? @ (rad/sec)

3. A playground merry-go-round of radius 1.5 meters. The child applies a 2.5 constant force of F, =50 Newtons to the rim. There is a frictional torque of 35 Nm opposing the rotation. The graph shows a plot of the resulting angular velocity of the merry-go-round as a function of time. 2 1.5 0.5 Fo 2 time (s) view from above a. What is the torque due to the force F, (take ccw as positive)? b. What is the moment of inertia of the merry-go-round? @ (rad/sec)

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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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

2.5
3. A playground merry-go-round of radius 1.5 meters. The child applies a
constant force of F, =50 Newtons to the rim. There is a frictional torque
of 35 Nm opposing the rotation. The graph shows a plot of the resulting
angular velocity of the merry-go-round as a function of time.
2
1.5
0.5
Fo
view from above
time (s)
a. What is the torque due to the force F, (take ccw as positive)?
b. What is the moment of inertia of the merry-go-round?
@ (rad/sec)

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