Conceptual Physics C2009 Guided Reading & Study Workbook Se
9th Edition
ISBN: 9780133647396
Author: Prentice Hall
Publisher: Prentice Hall
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Textbook Question
Chapter 2, Problem 41A
Why can’t the strong man pull hard enough to make the chain perfectly straight?
Expert Solution & Answer
To determine
To explain: The reason due to which a man is unable to pull the chain hard enough to make it perfectly straight.
Explanation of Solution
Introduction:
At equilibrium position or condition, net force exerted on an object is zero.
Consider the given situation diagram is shown below.
A strong man is pulling a chain in X-direction, while force due to gravity (weight of book) exerted on chain in Y-direction. As the force applied by man increases, chain becomes straighter. So, the net force exerted in X-direction becomes zero but, due to weight of book net force in Y-direction does not become zero. Due to this chain slightly bents downwards.
Conclusion:
A strong man cannot make chain perfectly straight because gravitational pull on chain is in downward direction.
Chapter 2 Solutions
Conceptual Physics C2009 Guided Reading & Study Workbook Se
Ch. 2 - What is the difference between force and net force...Ch. 2 - What is the net force on a box that is being...Ch. 2 - What name is given to the stretching force that...Ch. 2 - What two quantities are necessary to determine a...Ch. 2 - How does a vector quantity differ from a scalar...Ch. 2 - Give an example of a vector quantity. Give an...Ch. 2 - How much tension is in a rope that holds up a 20-N...Ch. 2 - What does F=0 mean?Ch. 2 - What is the net force on an object at rest?Ch. 2 - Prob. 10A
Ch. 2 - What is the angle between a support force and the...Ch. 2 - What two forces compress a spring inside a...Ch. 2 - When you are at rest and supported by a pair of...Ch. 2 - Can an object be moving and still be in...Ch. 2 - If you push a crate across a factory floor at...Ch. 2 - Prob. 16ACh. 2 - According to the parallelogram rule for two...Ch. 2 - Consider the suspension of Nellie in Figure 2.11....Ch. 2 - Consider Nellie in Figure 2.12. What changes in...Ch. 2 - When Nellie hangs from ropes at different angles,...Ch. 2 - Blocks A and B are supported by the table. Block C...Ch. 2 - In the diagram below, identical blocks are...Ch. 2 - Burl and Paul stand on their sign-painting...Ch. 2 - Percy does gymnastics, suspended by one rope in A...Ch. 2 - A cat lies on the floor. Can you say that no force...Ch. 2 - Consider two forces, one having a magnitude of 20...Ch. 2 - When a box of chocolate bars is in mechanical...Ch. 2 - Faina says that an object cannot be in mechanical...Ch. 2 - Phyllis Physics hangs at rest from the ends of the...Ch. 2 - Harry the painter swings year after year from his...Ch. 2 - How many significant forces act on a your physics...Ch. 2 - Why doesnt the support force that acts on a book...Ch. 2 - Nicole stands on a bathroom scale and reads her...Ch. 2 - Justin sets a hockey puck sliding across the ice...Ch. 2 - Alyssa pulls horizontally on a crate with a force...Ch. 2 - Consider a heavy refrigerator at rest on a kitchen...Ch. 2 - Sneezlee is supported by two thin wires. Is the...Ch. 2 - Sneezlees wire supports are repositioned as shown....Ch. 2 - If a picture frame were supported by a pair of...Ch. 2 - A monkey hangs by a strand of rope and holds onto...Ch. 2 - Why cant the strong man pull hard enough to make...Ch. 2 - Two vertical chains are used to hold up a 1000-N...Ch. 2 - Lucy Lightweight stands with one foot on one...Ch. 2 - Harry Heavyweight, who weighs 1200 N, stands on a...Ch. 2 - The sketch shows a painters staging in mechanical...Ch. 2 - A staging that weighs 300 N supports two painters,...Ch. 2 - Two children push on a heavy crate that rests on a...Ch. 2 - Two children push on a crate. They find that when...
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