Question

define positive negative and zero work 9​

Answer 1

Answer:

Positive work done – The work done is said to be positive when force and displacement are in the same direction. ... Zero work – the work done is said to be zero when force and displacement are perpendicular to each other.

Explanation:

Brainliest mark pls

Answer 2

Explanation:

Positive work done – The work done is said to be positive when force and displacement are in the same direction. ... Zero work – the work done is said to be zero when force and displacement are perpendicular to each other.

Positive work follows when the force has a component parallel to the displacement. Positive work adds energy to a system. Negative work follows when the force has a component opposite or against the displacement. Negative work removes or dissipates energy from the system.

when an object moves in a straight line displacement in positive.this is positive displacement.when the initial and final position are same for an object,then it has zero displacement.displacement can never be negative

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