Homework Help is Here – Start Your Trial Now!
Science
Physics
11. Bob is sitting on a swing that has a rope hooked up to it. The rope then goes through a pulley attached to a tree above him, and the loose end of the rope is then put in Bob's hand as he sits on the swing. In this way Bob can pull the swing and himself up by pulling down on the rope. The rope is nearly massless, so it has a constant tension throughout - this means that the force with which Bob pulls down on its loose end is equal to the force that the rope exerts on the swing with the tied end. Bob's mass is 100 kg, the swing's mass is 30 kg, and Bob's pulling force is 800N, which means that the tension in the rope is 800N. a) Draw a single free body diagram, treating Bob and the swing as a single object, for use in part b. Also draw the free body diagram for Bob alone, which you'll use to solve part c. b) Apply Newton's 2nd Law to your first diagram, and then solve it for the acceleration a. c) If Bob was sitting on a scale while this was going on, the scale would read the normal force on Bob from the swing, which is called the apparent weight. Find Bob's apparent weight while he's accelerating upward. Hint: this is similar to the turtle in the elevator, except that Bob has both tension and normal force acting upward on him.

11. Bob is sitting on a swing that has a rope hooked up to it. The rope then goes through a pulley attached to a tree above him, and the loose end of the rope is then put in Bob's hand as he sits on the swing. In this way Bob can pull the swing and himself up by pulling down on the rope. The rope is nearly massless, so it has a constant tension throughout - this means that the force with which Bob pulls down on its loose end is equal to the force that the rope exerts on the swing with the tied end. Bob's mass is 100 kg, the swing's mass is 30 kg, and Bob's pulling force is 800N, which means that the tension in the rope is 800N. a) Draw a single free body diagram, treating Bob and the swing as a single object, for use in part b. Also draw the free body diagram for Bob alone, which you'll use to solve part c. b) Apply Newton's 2nd Law to your first diagram, and then solve it for the acceleration a. c) If Bob was sitting on a scale while this was going on, the scale would read the normal force on Bob from the swing, which is called the apparent weight. Find Bob's apparent weight while he's accelerating upward. Hint: this is similar to the turtle in the elevator, except that Bob has both tension and normal force acting upward on him.

College Physics
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)...
See similar textbooks
icon
Related questions
Question
Don't use chat gpt It Chatgpt means downvote
11. Bob is sitting on a swing that has a rope hooked up to it. The rope then goes through a pulley attached to a tree above him, and the loose end of the rope is then put in Bob's hand as he sits on the swing. In this way Bob can pull the swing and himself up by pulling down on the rope. The rope is nearly massless, so it has a constant tension throughout - this means that the force with which Bob pulls down on its loose end is equal to the force that the rope exerts on the swing with the tied end. Bob's mass is 100 kg, the swing's mass is 30 kg, and Bob's pulling force is 800N, which means that the tension in the rope is 800N. a) Draw a single free body diagram, treating Bob and the swing as a single object, for use in part b. Also draw the free body diagram for Bob alone, which you'll use to solve part c. b) Apply Newton's 2nd Law to your first diagram, and then solve it for the acceleration a. c) If Bob was sitting on a scale while this was going on, the scale would read the normal force on Bob from the swing, which is called the apparent weight. Find Bob's apparent weight while he's accelerating upward. Hint: this is similar to the turtle in the elevator, except that Bob has both tension and normal force acting upward on him.
Transcribed Image Text:11. Bob is sitting on a swing that has a rope hooked up to it. The rope then goes through a pulley attached to a tree above him, and the loose end of the rope is then put in Bob's hand as he sits on the swing. In this way Bob can pull the swing and himself up by pulling down on the rope. The rope is nearly massless, so it has a constant tension throughout - this means that the force with which Bob pulls down on its loose end is equal to the force that the rope exerts on the swing with the tied end. Bob's mass is 100 kg, the swing's mass is 30 kg, and Bob's pulling force is 800N, which means that the tension in the rope is 800N. a) Draw a single free body diagram, treating Bob and the swing as a single object, for use in part b. Also draw the free body diagram for Bob alone, which you'll use to solve part c. b) Apply Newton's 2nd Law to your first diagram, and then solve it for the acceleration a. c) If Bob was sitting on a scale while this was going on, the scale would read the normal force on Bob from the swing, which is called the apparent weight. Find Bob's apparent weight while he's accelerating upward. Hint: this is similar to the turtle in the elevator, except that Bob has both tension and normal force acting upward on him.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS