Question

The workdone by a force on a bodi will be positive if the (a) body does not move (b) body moves perpendicular to the direction of motion (c) body moves along the direction of applied force (d) body moves opposite to the direction of applied force​

Answer 1

Answer:

Work done on an object along a given direction of motion is equal to the force times the displacement times the cosine of the angle. No work is done along a direction of motion if the force is perpendicular.