Tension is a force that is transmitted through a string, rope, cable, or similar object when it is pulled tight by forces acting from opposite ends.
The units of tension are typically expressed in Newtons (N) in the SI system or pounds (lb) in the Imperial system.
Tension can be calculated using the formula T = F * L, where T is the tension, F is the force applied, and L is the length of the string or object.
Tension is commonly used in engineering and construction to determine the strength and stability of structures, such as bridges and buildings. It is also used in physics experiments to study the behavior of objects under tension.
Yes, tension can be negative in certain situations where the force applied is in the opposite direction of the string or object's natural tension. This can occur, for example, when a string is being compressed rather than stretched.