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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

Only if the forces acting on it are conservative

B

Only if gravitational force alone acts on it

C

Only if elastic force alone acts on it

D

For any kind of force acting on it

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The correct Answer is:
D
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AAKASH SERIES-WORK, POWER & ENERGY -EXERCISE - I
  1. Three spheres of different materials are in motion their radii, densit...

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  2. Two bodies of masses m, and m, have equal momentum. Their K.E. are in ...

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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): No work is done by the centripetal force acting on a body moving ...

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  5. Two springs with stiffness constants K(1) and K(2) (K(2) gt K(1)) are ...

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  6. . A lorry and a car moving with same KE are brought to rest by applyin...

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  7. A lorry and a car moving with the same momentum are brought to rest by...

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  8. A shell is fired into air at an angle with the horizontal from the gro...

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  9. If the force acting on a body is inverely proportional to its speed, t...

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  10. The kinetic energy of freely falling body

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  11. A body can have

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  12. What happens when a metal spring dissolves in an acid?

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  13. Same force acts on two bodies of masses m, and m(2)(m(2) gt m(1)) Afte...

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  14. A constant force acts on a body which is intially at rest. If a graph ...

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  15. A heavy stone is thrown from a cliff of height h with a speed v. The s...

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  16. A) Work done by frictional force is always negative B) A body at res...

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

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  18. . (A): Mountain roads rarely go straight up the slope. (R): Slope o...

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  19. body is allowed to fall from a height h above the ground. Then match t...

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

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