User:Ankit.eme10/sandbox

free vector and bound vector FREE VECTOR-a vector of which only the magnitude and direction are specified, not the position or line of action.

BOUND VECTOR-A vector whose line of application and point of application are both prescribed, in addition to its direction.

conservative and non-conservative force Conservative forces are those forces against which the work done doesn't depend on the path followed but depends only on the initial and final positions.e.g if take an object against gravity, the work done depends only on initial height and final height of object(i.e mgh) whether we take it straight to that height or through stairs or curved path. Other examples are spring force,electric forces etc. Work done on a closed path is zero if it's done against conservative forces, as the initial and final points are the same.

Non-conservative forces are those in which the work done depends on the path taken.e.g force of friction. When an object is displaced against friction, some amount of our work done is dissipated in form of heat energy which is produced due to rubbing of two objects. The amount of heat energy dissipated is more if the length of path taken is more. Hence work done on a closed path in this case is not zero. Other examples are viscous force and air resistance.