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The total workdone on a particle is equa...

The total workdone on a particle is equal to change in it.s kinetic energy

A

always

B

only if the forces acting on it are conservative

C

only if gravitational force alone acts on it

D

only it elastic force alone acts on it

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The correct Answer is:
A
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AAKASH SERIES-WORK POWER ENERGY-EXERCISE - 1A
  1. The work done by the external forces on a system equals the change in

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  2. The work done by all the forces (external and internal) on a system eq...

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  3. The total workdone on a particle is equal to change in it.s kinetic en...

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  4. A body is falling freely under the action of gravity alone in vacuum. ...

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  5. . A curve is drawn expressing the kinetic energy of a particle as a fu...

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  6. A body is moving unidirectionally under the influence of a source of c...

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  7. Which of the diagrams shown below most closely shows the variation in ...

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  8. A raindrop falling from a height .h. above ground, attains a near term...

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  9. A heavy stone is thrown from a cliff of height h in a given direction....

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  10. 40. Which of the diagrams correctly shows the change in kinetic energy...

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  11. A proton is kept at rest. A positively charged particle is released fr...

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  12. Statement - A : Heat energy required for burning a case of rocket in f...

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  13. Statement - A : Work done by a man in lifting a bucket out of a well b...

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  14. Statement - A : When a conservation force does positive work on a bod...

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  15. A body is initially at rest. It under goes one - dimension motion with...

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  16. A vertical spring with force constant .k. is fixed on a table. A ball ...

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  17. An engine pumps water continuously through a hose Water leaves the hos...

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  18. The potential energy of a system increases if work is done

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  19. A body projected vertically from the earth reaches a height equal to e...

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  20. The potential energy of a particle in a force filled is U=(A)/(r^(2))-...

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