Answer:

Explanation:
Displacement is a vector that defines the position of a particle. The vector extends from the initial position to the final position. Therefore, the displacement only takes into account this positions, since its trajectory is not important:

1.It gives less load on the shaft.
2.It transmits more power than belts.
3.It may be used for both long as well as short distance.
Every action have an equal and opposite reaction.
When you push with a force it will push on you with the same force