Question

write s.i. unit of work what is meant by positive work negative work and zero work​

Answer 1

Answer:

The SI unit for work and energy is the joule (J), where 1 J = 1 N ⋅ m = 1 kg ⋅ m2/s2. The work done by a force is zero if the displacement is either zero or perpendicular to the force. The work done is positive if the force and displacement have the same direction, and negative if they have opposite direction.

Explanation:

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Answer 2

Answer:

s I unit of work is joule

Explanation:

NEGATIVE WORK:The work done is said to be negative work when force and displacement are in opposite direction

ZERO WORK:The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero

POSITIVE WORK: when force and displacement are in the same direction