Work is said to be positive when Kinetic energy is greater than velocity (option B). Details about work can be found below.
Work is a measure of energy expended in moving an object; most commonly, force times distance. This means that no work is done if the object does not move.
However, work can either positive or negative depending on the direction of the object and the force applied.
When force and displacement are in the same direction, the work performed on an object is said to be positive work.
This further means that the kinetic energy, which is the energy due to motion, will be greater than the velocity of the object in order to overcome the object.
Therefore, work is said to be positive when kinetic energy is greater than velocity.
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