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||<:30%>[:PiraScheme#Mechanics: Table of Mechanics Demonstration]||<:30%>[:MEEquipmentList: List of Mechanics Equipment & Supplies]||<:30%>[:Demonstrations:Lecture Demonstrations]|| ||<:30%>[[PiraScheme#Mechanics| Table of Mechanics Demonstration]]||<:30%>[[MEEquipmentList| List of Mechanics Equipment & Supplies]]||<:30%>[[Demonstrations|Lecture Demonstrations]]||
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  Statistics of Rigid Bodies, [:Newtons1STLaw#InertiaofRest: 1F20. Inertia of Rest]   Statistics of Rigid Bodies, [[RigidBodies#ResolutionofForces| 1J30. Resolution of Forces]]
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 * '''Cabinet:''' [:MechanicsCabinet:Mechanic (ME)]
 * '''Bay:''' [:MechanicsCabinetBayB6:(B6)]		  * '''Cabinet:''' [[MechanicsCabinet|Mechanic (ME)]]
 * '''Bay:''' [[MechanicsCabinetBayB7|(B7)]]
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attachment:TugofWar01-400.jpg {{attachment:TugofWar01-400.jpg}}
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Two people pull in opposing directions on the end of a rope demonstrating vector addition of the two forces.		  
Two people pull in opposite directions on opposite ends of a rope demonstrating vector addition of the two opposing forces.
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||Tug-of-War Rope||WS, Bay B1, Shelf #2|| || ||Tug-of-War Rope||ME, Bay B7, Shelf #2|| ||
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 1. Obtain two volunteers to participate in a tug-of-war.
 1. Have each volunteer grab an end of the rope and face each other.
 1. Have each volunteer pull on the rope in the opposite direction of their competitor (this is the basic idea of tug-of-war).		  1. Obtain two or more volunteers to participate in a tug-of-war.
 1. Have each volunteer or group grab an end of the rope and face each other.
 1. Have each volunteer or group pull on the rope in the opposite direction of their competitor (this is the basic idea of tug-of-war).
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Each participant applies a force on the rope creating a tension in the rope. The tension is the sum of magnitude of each volunteer's input force. If each volunteer is equally matched (in the mathematical sense, admittedly highly idealized), then the net acceleration of the system is zero and the volunteer-rope system will not budge. Thus the match ends in a stalemate. Let's suppose the two volunteers are an offensive lineman from the Badgers varsity football team and an innocent, freshman physics major. It is safe to assume that the lineman can generate much more force than can his opponent. Thus the total force on the system is nonzero and there will be a net acceleration in the direction of the lineman. In other words, the lineman would win the match. Each participant applies a force on the rope creating a tension in the rope. The tension is the sum of magnitude of each volunteer's inputted force. If each volunteer is equally matched (in the mathematical sense, admittedly a highly idealized situation), then the net acceleration of the system would be zero and the volunteer-rope system will not budge. Thus the match ends in a stalemate. Let's suppose the two volunteers are an offensive lineman from the Badgers varsity football team and an innocent, freshman physics major. It is safe to assume that the lineman can generate much more force than can his opponent. Thus the total force on the system is nonzero and there will be a net acceleration in the direction of the lineman. In other words, the lineman would win the match.
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||attachment:Rope01-250.jpg|| ||{{attachment:Rope01-250.jpg}}||
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 * [https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]  * [[https://www.youtube.com/user/LectureDemostrations/videos?view=1|Lecture Demonstration's Youtube Channel]]
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[:Instructional:Home] [[Instructional|Home]]

Table of Mechanics Demonstration

List of Mechanics Equipment & Supplies

Lecture Demonstrations

Tug-of-War, 1J30.21

Topic and Concept:

Location:

TugofWar01-400.jpg

Abstract:

Two people pull in opposite directions on opposite ends of a rope demonstrating vector addition of the two opposing forces.

Equipment

Location

ID Number

Tug-of-War Rope

ME, Bay B7, Shelf #2

Important Setup Notes:

  • N/A

Setup and Procedure:

  1. Lay the rope down in front of the audience such that it lays straight.
  2. Obtain two or more volunteers to participate in a tug-of-war.
  3. Have each volunteer or group grab an end of the rope and face each other.
  4. Have each volunteer or group pull on the rope in the opposite direction of their competitor (this is the basic idea of tug-of-war).

Cautions, Warnings, or Safety Concerns:

  • N/A

Discussion:

Each participant applies a force on the rope creating a tension in the rope. The tension is the sum of magnitude of each volunteer's inputted force. If each volunteer is equally matched (in the mathematical sense, admittedly a highly idealized situation), then the net acceleration of the system would be zero and the volunteer-rope system will not budge. Thus the match ends in a stalemate. Let's suppose the two volunteers are an offensive lineman from the Badgers varsity football team and an innocent, freshman physics major. It is safe to assume that the lineman can generate much more force than can his opponent. Thus the total force on the system is nonzero and there will be a net acceleration in the direction of the lineman. In other words, the lineman would win the match.

Rope01-250.jpg

Videos:

References:

  • N/A

Home

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