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To keep a particle moving with constant ...

To keep a particle moving with constant velocity on a frictionless horizontal surface an external force

A

Should act continuously

B

Should be a variable force

C

Should not act

D

Should act opposite to the direction of motion

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The correct Answer is:
C
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AAKASH SERIES-LAWS OF MOTION-EXERCISE - I
  1. To keep a particle moving with constant velocity on a frictionless hor...

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  2. The internal forces acting on an isolated system

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  3. A person in a car tends to fall back when it suddenly starts is an exa...

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  4. The area under force time curve gives

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  5. A train is moving with acceleration along a straight line with respect...

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  6. A force P acts on a particle so as to accelerate it from rest to certa...

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  7. A body of mass m has its position x at a time t, expressed by the equa...

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  8. A jet of water with a cross sectional area 'a' is striking against a w...

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  9. A force F varies with time in accordance with the following figure. Th...

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  10. Graph of a body is shown below. It explains that

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  11. A body is moving with an acceleration 'a' under the action of a force ...

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  12. A force produces an acceleration of a(1) in a body and the same force ...

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  13. A rubber ball falls from a height h and rebounds to a height h/2. A ru...

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  14. A fat hose pipe is held horizontally by a fireman. It delivers water t...

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  15. Two trains A and B are runing in the same directions on parallel track...

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  16. When we jump out of a boat standing in water, it moves

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  17. A man is standing on a spring platform Reading of spring balance is 60...

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  18. There are three Newton's laws of motion namely first, second and hird ...

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  19. Which law of Newton is called the law of equilibrium ?

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  20. An object is thrown vertically upward with a non - zero velocity. If g...

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