Concurrent and non-concurrent forces
Concurrent forces are two or more forces whose lines of action intersect at the same point to cause rotation. The forces do not necessarily have to be applied
For example: If two people stand the ends of a rope and pull on it, the forces are concurrent because the effect of the forces will intersect at the same point (presumably in the middle of the rope). A real life example of this would be a tug of war competition as shown in the image above.
For example: If two people stand the ends of a rope and pull on it, the forces are concurrent because the effect of the forces will intersect at the same point (presumably in the middle of the rope). A real life example of this would be a tug of war competition as shown in the image above.
Non-concurrent forces
Non-concurrent forces are two or more forces whose magnitudes are equal but act in opposite directions with a common line of action.
Non-concurrent Forces and couple
What is couple?
A couple is an example of a non-concurrent force because its line of action does not intersect at one point.
In mechanics, a couple is a system of forces with a resultant (a.k.a. net, or sum) moment but no resultant force. Another term for a couple is a pure moment. Its effect is to create rotation without translation, or more generally without any acceleration of the center of mass.
A couple is an example of a non-concurrent force because its line of action does not intersect at one point.
In mechanics, a couple is a system of forces with a resultant (a.k.a. net, or sum) moment but no resultant force. Another term for a couple is a pure moment. Its effect is to create rotation without translation, or more generally without any acceleration of the center of mass.