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C. 3. A trunk of mass M is on a ramp. A rope pulls on the trunk horizontally as shown but the trunk does not move. a. In the box provided, draw a labeled 'free body diagram" (FBD) showing all the forces acting on the trunk. All the forces in the diagram should have descriptive labels giving the name of the force, for example, "T or "F" for the tension. Do not label the weight as "g" - this is the acceleration due to gravity and is not a force. Label the weight as "F", "W", or "Mg". Newton's 3rd law says that all forces come in action-reaction pairs, i.e., if object A exerts a force on B, object B must exert the same force on A but in the opposite direction. Note that action-reaction pairs always must be the same type of force. b. What is the reaction force corresponding to the ramp pushing into the trunk? What type of force is it? What direction is the reaction force and what object does the reaction force act on? What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. FBD d. What is the reaction force corresponding to the Earth pulling down on the trunk? O e. What is the reaction force corresponding to the force that prevents the trunk from sliding? f. The purpose of drawing the free body diagram is to use it when we write out Newton's 2nd law. Why are the reaction forces not included in the free body diagram for the trunk?

C. 3. A trunk of mass M is on a ramp. A rope pulls on the trunk horizontally as shown but the trunk does not move. a. In the box provided, draw a labeled 'free body diagram" (FBD) showing all the forces acting on the trunk. All the forces in the diagram should have descriptive labels giving the name of the force, for example, "T or "F" for the tension. Do not label the weight as "g" - this is the acceleration due to gravity and is not a force. Label the weight as "F", "W", or "Mg". Newton's 3rd law says that all forces come in action-reaction pairs, i.e., if object A exerts a force on B, object B must exert the same force on A but in the opposite direction. Note that action-reaction pairs always must be the same type of force. b. What is the reaction force corresponding to the ramp pushing into the trunk? What type of force is it? What direction is the reaction force and what object does the reaction force act on? What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. FBD d. What is the reaction force corresponding to the Earth pulling down on the trunk? O e. What is the reaction force corresponding to the force that prevents the trunk from sliding? f. The purpose of drawing the free body diagram is to use it when we write out Newton's 2nd law. Why are the reaction forces not included in the free body diagram for the trunk?

International Edition---engineering Mechanics: Statics, 4th Edition
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter4: Coplanar Equilibrium Analysis
Section: Chapter Questions
Problem 4.168P: A couple acting on the winch at G slowly raises the load W by means of a rope that runs around the...
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C. 3. A trunk of mass M is on a ramp. A rope pulls on the trunk horizontally as shown but the trunk does not move. a. In the box provided, draw a labeled 'free body diagram" (FBD) showing all the forces acting on the trunk. All the forces in the diagram should have descriptive labels giving the name of the force, for example, "T or "F" for the tension. Do not label the weight as "g" - this is the acceleration due to gravity and is not a force. Label the weight as "F", "W", or "Mg". Newton's 3rd law says that all forces come in action-reaction pairs, i.e., if object A exerts a force on B, object B must exert the same force on A but in the opposite direction. Note that action-reaction pairs always must be the same type of force. b. What is the reaction force corresponding to the ramp pushing into the trunk? What type of force is it? What direction is the reaction force and what object does the reaction force act on? What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. FBD d. What is the reaction force corresponding to the Earth pulling down on the trunk? O e. What is the reaction force corresponding to the force that prevents the trunk from sliding? [ f. The purpose of drawing the free body diagram is to use it when we write out Newton's 2nd law. Why are the reaction forces not included in the free body diagram for the trunk?
Transcribed Image Text:C. 3. A trunk of mass M is on a ramp. A rope pulls on the trunk horizontally as shown but the trunk does not move. a. In the box provided, draw a labeled 'free body diagram" (FBD) showing all the forces acting on the trunk. All the forces in the diagram should have descriptive labels giving the name of the force, for example, "T or "F" for the tension. Do not label the weight as "g" - this is the acceleration due to gravity and is not a force. Label the weight as "F", "W", or "Mg". Newton's 3rd law says that all forces come in action-reaction pairs, i.e., if object A exerts a force on B, object B must exert the same force on A but in the opposite direction. Note that action-reaction pairs always must be the same type of force. b. What is the reaction force corresponding to the ramp pushing into the trunk? What type of force is it? What direction is the reaction force and what object does the reaction force act on? What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. FBD d. What is the reaction force corresponding to the Earth pulling down on the trunk? O e. What is the reaction force corresponding to the force that prevents the trunk from sliding? [ f. The purpose of drawing the free body diagram is to use it when we write out Newton's 2nd law. Why are the reaction forces not included in the free body diagram for the trunk?
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