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Internal forces can change...

Internal forces can change

A

Linear momentum as well as kinetic energy

B

Linear momentum but not the kinetic energy

C

Kinetic energy but not linear momentum

D

neither the linear momentum nor the kinetic energy

Text Solution

Verified by Experts

The correct Answer is:
C
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Choose the correct statement regarding a system of particles. Internal forces can change the kinetic energy of the system without changing system's momentum O Impulse can be defined as a very large force that acts for a very short time and causes finite change in momentum. Internal forces can change the potential energy of the system without changing system's momentum Internal forces can change the mechanical energy of the system without changing system's momentum.

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Internal forces acting in a system of particle can change

Internal forces acting in a system of particle can change

NARAYNA-WORK POWER AND ENERGY-C.U.Q-Key
  1. The KE of a freely falling body

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  2. Consider the following two statements: A. Linear momentum of a syste...

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  3. Internal forces can change

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  4. If the force acting on a body is inversely proportional to its speed, ...

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  5. Which of the following graphs depicts the variation of KE of a ball bo...

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  6. Which of the following statements is correct?

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

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

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  9. A body can have

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

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  11. These diagrams represent the potential energy U of a diatomic molecule...

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

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

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  14. A lorry and a car moving with the same KE are brought to rest by apply...

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  15. A shell is fired into ait at an angle theta with the horizontal form t...

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  16. A cricket ball and a ping-pong ball are dropped. When they vacuum cham...

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  17. A cyclist free-wheels from the top of a hill, gathers speed going down...

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  18. If 'E' represents total mechanical energy of a system while 'U' repres...

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  19. For a body thrown vertically upwards, its direction of motion changes ...

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  20. Internal forces can change

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