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Newton's II law of motion connects:...

Newton's II law of motion connects:

A

First

B

Second

C

Third

D

none

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Newton's laws of motion can be applied to a block in liquid also force due to liquid (e.g. upthrust) are also considered in addition to toher forces. A small block of weight W is kept inside. The block is attached with a string connected to the bottom of the vessel. Tension in the string is W//2 Q. The string is cut. find the time when it reaches the surface of the liquid

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KUMAR PRAKASHAN-FORCE AND LAWS OF MOTION-QUESTIONS AND ANSWERS( Choose the correct option from those given below each question :)
  1. Newton's II law of motion connects:

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  2. What is the momentum of an object of mass m, moving with a velocity v ...

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  3. State the SI unit of momentum.

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  4. 1 newton ......... dyne

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  5. What is the product of force and the time period for which the force i...

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  6. A constant force of 5N is applied on a body of 10 kg mass, with how mu...

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  7. Which of the following vehicles has the least Inertia?

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  8. How much force is needed to produce accele ration of 80 cm s? in a bod...

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  9. Unit of which physical quantity is same as that of unit of impulse of ...

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  10. Newton's second and third law lead to which Important law of physics?

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  11. For which type of surface magnitude of frietional force would be less?

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  12. On which factor the frictional force does not depend?

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  13. Which substance cannot be used to reduce friction?

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  14. How much acceleration is produced onapplying a force of 0.5 N on an ob...

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  15. What change would occur in acceleration. if the external force acting ...

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  16. Which of the following physical quantity is scalar?

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  17. If a force of 5N acts on an object of mass 2 kg for 2 s. then = what w...

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  18. If a constant force is applied to an object of mass 0.9 kg in stationa...

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  19. What is the momentum of an object of mass m, moving with a velocity v ...

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  20. Momentum of an object is 28 kg ms^(-1). If its velocity is 1.4 ms^(-1)...

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