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Which of the following statement is corr...

Which of the following statement is correct

A

KE of a system cannot be changed without changing its momentum

B

KE of a system can be changed without changing its momentum

C

Momentum of a system cannot be changed without changing its KE

D

A system cannot have energy without having momentum

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The correct Answer is:
A
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NARAYNA-WORK , ENERGY & POWER -C.U.Q
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  2. If the force acting on a body is inversely proportional to its speed, ...

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  3. Which of the following statement is correct

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  4. Two bodies of unequal masses have same linear momentum. Which one has ...

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  5. Two bodies of masses m(1) and m(2) have equal KE. Their momenta is in...

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  6. A body can have

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  7. A rock of mass m is dropped to the ground from a height h. A second ro...

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  8. Kilowatt hour is the unit of

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  9. Two unequal masses are ties together with a cord with a compressed spr...

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  10. When a spring is wound, a certain amount of PE is stored in it. If thi...

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  11. Two springs have their force constants K(1) and K(2) and they are stre...

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  12. Two spring have their force constants K(1) and K(2)(K(2) gt K(1)). Whe...

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  13. Which of the following statements is true for work done by conservativ...

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  14. Which of the following statement is incorrect for a conservative field...

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  15. Change in Potential energy is defined for

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  16. Which of the following forces is called a conservative force?

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  17. Identify the non-conservative force in the following

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  18. If x, F and U denote the displacement force acting on and potential en...

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  19. In the case of conservative force

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  20. The total work done on a particle is equal to the change in its kineti...

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