Question

Difene work and give its SI units

Answer 1

Answer:

work is defined as the dot product of force and displacement.

I. e ,

W = F.S

= |F| |S| cos∅

where , ∅ is the angle between force and displacement .

it is a scalar quantity.

it's si unit is joule ( j).

Explanation:

Note* - when the angle between force and displacement us 90° , then work done is 0 ,

as cos90° = 0

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