Question

What is positive, negative and zero work?​

Answer 1

Answer:

Positive work: when force and displacement are in the same direction, the work performed on an object is said to be positive work. ... Example: Work was done the gravity on a rocket going perpendicular upwards.

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

Negative work: when force and displacement are in opposite direction, the work performed on an object is said to be negative work....example: work done by friction force

Answer 2

☞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.