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What is necessary for work to be done? ...

What is necessary for work to be done?
Choose the correct statement.
(1) Action of force is necessary.
(2) Displacement is necessary.
(3) Displacement in the direction of force is necessary.

A

Statement 1

B

Statement 2

C

Statement 3

D

Statement 1 and 3

Text Solution

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The correct Answer is:
A, C, D
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (CHOOSE THE CORRECT OPTION FROM THOSE GIVEN BELOW EACH QUESTION)
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  14. What is the unit of work in the SI system of unit?

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  16. A person of mass 55kg pushesh a wall. Work done by this person …………..

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  19. The kinetic energy of the object

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