# What is meant by a positive work, negative work and zero work? Illustrate your answer with example?

Work is said to be done when a force applied to an object moves that object.

## Positive work

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

Example: When a body moves on the horizontal surface, force and displacement act in the forward path. The work is done in this case known as Positive work.

## Negative work

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

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.

Example: When we hold an object and walk, the force acts in a downward direction whereas displacement acts in the forward direction.

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1. Rohit kharwar

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2. Thank u for explaining

3. Love the explanation. Short and perfect.

4. Waseem Akram

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5. K R Saji

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7. saajana

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8. Stuti Singh