AshikaKnowledge Contributor
What is the importance of the angle between the force vector and the displacement vector?
What is the importance of the angle between the force vector and the displacement vector?
The work produced by force on a body can be zero, positive or negative. It depends on the displacement’s direction of the body relative to the force. For a body travelling in the opposite direction to the force’s direction, such as frictional force acting on a body travelling in the forward direction, the work produced due to the frictional force is negative.
Correspondingly, when a body experiences zero force when displacement’s angle is perpendicular to the direction of the applied force. For example, if a person lifts a body on his head travelling at an angle of 90° relative to the gravitational force, then the work done by the gravitational force on the body is zero.