Question

Write S.I unit of work. What is meant by positive work, negative work and zero work?​

Answer 1

Answer:

Joule is SI unit of work

Positive work: when force and displacement are in the same direction, the work performed on an object is said to be positive work.

Negative work: Negative work is performed if the displacement is opposite to the direction of the Force applied.

Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.

Answer 2

Answer:

si unit of work is joule..

when force and displacement are on the same direction...is called positive work..

when force is opposite to the direction ..is called negative work...

when force and displacement are in a perpendicular direction..it is called..zero work...

hope it helps you