Question

When is the work done by a force on a body:
• Positive
• Negative
• Zero. Give examples for each?

Answer 1

Answer:

Work done by a force is positive if the applied force has a component in the direction of the displacement. Also, if the force acts perpendicular to the direction of motion, or if the displacement of the object is zero, then work done is zero.

Answer 2

Answer:

it's positive because when we applied any force to any object we give him aur charge to object to move it