combination of forces. Give examples
Answers
Answer:
The net force acting on an object is the combination of all of the individual forces acting on it. If two forces act on an object in opposite directions, the net force is the difference between the two forces. If two forces act on an object in the same direction, the net force is the sum of the two forces.
Normal (N, Fn)
The force between two solids in contact that prevents them from occupying the same space. The normal force is directed perpendicular to the surface. A "normal" in mathematics is a line perpendicular to a planar curve or surface; thus the name "normal force".
Friction (f, Ff)
The force between solids in contact that resists their sliding across one another. Friction is directed opposite the direction of relative motion or the intended direction of motion of either of the surfaces.
Tension (T, Ft)
The force exerted by an object being pulled upon from opposite ends like a string, rope, cable, chain, etc. Tension is directed along the axis of the object. (Although normally associated with solids, liquids and gases can also be said exert tension in some circumstances.)
Elasticity (Fe, Fs)
The force exerted by an object under deformation (typically tension or compression) that will return to its original shape when released like a spring or rubber band. Elasticity, like tension, is directed along an axis (although there are exceptions to this rule.