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Internal forces can change...

Internal forces can change

A

Kinetic energy

B

total momentum of system

C

total energy of the system

D

All of the above

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The correct Answer is:
A
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Explore conceptually related problems

Choose correct statement (A) The position of centre of mass of a system is dependent on the choice of coordinate system. (B) Newton's second law of motion is applicable to the centre of mass of the system (C) Internal forces can not change the state of centre of mass (D) Internal forces can change the state of centre of mass.

(A) : Acceleration of centre of mass depends only on the external force not on the internal forces. (R ) : Internal forces are the force exerted by the particles on one another according to Newton.s third law they constitutes action, reaction pair and cancel each other.

AAKASH SERIES-WORK, POWER & ENERGY -EXERCISE - I
  1. A particle is acted upon by a force of constant magnitude which is alw...

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  2. Two spheres A and B collide. If the momentum of A is doubled in the co...

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  3. Internal forces can change

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  4. (A): Mass and energy are not conserved separately, but are conserved a...

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  5. Two bodies A and B of masses m, and m, moving with velocities V(1) and...

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  6. Two particles of equal masses have an elastic collision, the target pa...

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  7. . A bullet hits a block at rest on a frictionless horizontal surface a...

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  8. A heavier sphere moving eastward with a certain velocity .v. collides ...

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  9. When a ball hits a floor and rebounds after an inelastic collision,

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  10. Coefficient of restitution depends upon

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  11. Two particles of different masses collide head on. Then for the system

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  12. A particle moving with certain velocity collides elastically with anot...

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  13. Two bodies of equal masses moving mutually at right angles to each oth...

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  14. During the collision a relatively large force acts on each colliding p...

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  15. Choose the wrong statement

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  16. Which of the following is an example of completely inelastic collision

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  17. . During head on elastic collision, two bodies of masses m(1) and m(2)...

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  18. (A) : Collision between two particles is not necessarily associated wi...

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  19. A sphere of mass M,, moving with a velocity V0 collides head on with a...

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  20. Let us assume that you have lifted a suitcase and kept it on a table. ...

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