A. Consider the following incorrect statement made by a student: Вook "I think that the normal force and the weight are a third-law force pair. They're the same size and point in opposite directions, so they must be a third-law pair." 1. The student has incorrectly identified a third-law force pair. What force does make a third-law force pair with the normal force on the book by the table? 2. The student is correct that the normal force and the weight are equal in magnitude. Explain how you can tell they are equal. B. What third-law force pairs are shown in the diagrams that you have drawn? Identify all third- law force pairs on your free-body diagrams by placing one or more small "x" symbols through each member of the pair. For example, if you have two sets of third-law force pairs shown on your diagrams, mark each member of the first pair as , and each member of the second pair as**. C. Can both members of a third-law force pair appear on the same free-body diagram? Explain why or why not. D. Can the members of a third-law force pair be different types of forces (e.g., one a gravitational force and one a frictional force)? Explain why or why not.

A. Consider the following incorrect statement made by a student: Вook "I think that the normal force and the weight are a third-law force pair. They're the same size and point in opposite directions, so they must be a third-law pair." 1. The student has incorrectly identified a third-law force pair. What force does make a third-law force pair with the normal force on the book by the table? 2. The student is correct that the normal force and the weight are equal in magnitude. Explain how you can tell they are equal. B. What third-law force pairs are shown in the diagrams that you have drawn? Identify all third- law force pairs on your free-body diagrams by placing one or more small "x" symbols through each member of the pair. For example, if you have two sets of third-law force pairs shown on your diagrams, mark each member of the first pair as , and each member of the second pair as**. C. Can both members of a third-law force pair appear on the same free-body diagram? Explain why or why not. D. Can the members of a third-law force pair be different types of forces (e.g., one a gravitational force and one a frictional force)? Explain why or why not.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....

See similar textbooks

Similar questions

A 6.0-kg object undergoes an acceleration of 2.0 m/s2. (a) What is the magnitude of the resultant force acting on it? (b) If this same force is applied to a 4.0-kg object, what acceleration is produced?
A physics major is cooking breakfast when he notices that the frictional force between his steel spatula and his Teflon frying pan is only 0.200 N. Knowing the coefficient of kinetic friction between the two materials, he quickly calculates the normal force. What is it?
The force on a baseball as with a bat can be more than 8,000 lb. No human can push on a bat with that much force. What is happening in this instance?
While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?
The manager of a department store is pushing horizontally with a force of magnitude 200 N on a box of shirts. The box is sliding across the horizontal floor with a forward acceleration. Nothing else touches the box. What must be true about the magnitude of the force of kinetic friction acting on the box (choose one)? (a) It is greater than 200 N. (b) It is less than 200 N. (c) It is equal to 200 N. (d) None of those statements is necessarily true.
As a horse and wagon are accelerating From rest, the horse exerts a force of 400 N on the wagon (Figure 2.56), Illustrating Newton's third law, the wagon exerts an equal and opposite force of 400 N. Because the two forces are in opposite directions, why don't they cancel each other and produce zero acceleration (i.e., no motion)?
When you take off in a jet aircraft, there is a sensation of being pushed back into the seat. Explain why you move backward in the seat—is there really a force backward on you? (The same reasoning explains whiplash injuries, in which the head is apparently thrown backward.)
. Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What net force would have to act on someone with mass of 50 kg to cause this acceleration? (b) Find the weight of such a person in pounds then convert the answer to (a) to pounds.
Ina traction setup a broken bone, with pulleys and rope available, how might we be able to Increase the force along the tibia using the weight? (See Figure 4.30) (Note that the tibia is the shin bone shown in this image.) Figure 4.30 A leg is suspended by a traction system in which wires used to transmit forces. Frictionless pulleys crw.ge the direction of the force T without changing Its magnitude.
The glue on a piece of tape can exert forces. Can these forces be a type of simple friction? Explain, considering especially that tape can stick to vertical walls and even to ceilings.
What properties do forces have that allow us to classify them as vectors?
A force is a quantity that is ___ of producing motion or a change in motion. (3.1)