Question

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Answer 1

Answer:

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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.

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.

Hope it helps!!!