Question

write the correct alternative
1) joule is the unit of
2) while drogging or lifting an object negative work is done by

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Answer 1

Answer:

(i)joule is the SI unit of energy

(ii) frictional and gravitational force

Answer 2

Answer:

1)The joule is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction .

2)While dragging or lifting an object, the negative work is done by frictional and gravitational force, respectively.

Explanation:

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