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Answer carefully, with reasons : Is th...

Answer carefully, with reasons :
Is the total linear momentum conserved during the short time of an elastic collision of two balls?

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Answer carefully, with reasons : In an elastic collision of two billiard balls, is the total kinetic energy conserved during the short time of collision of the balls (i.e. when they are in contact)?

In an elastic collision of two billiard balls,which of the the following quantities remain conserved during the short time of collision of the balls ? (i.e. when they are in contact) (a) Kinetic energy. (b) Total linear momentum. Give reason for your answer in each case.

Answer carefully, with reasons : What are the answers to (a) and (b) for an inelastic collision?

Explain the total linear momentum is conserved in an elastic collision and also explain the inelastic collision and completely elastic collision .

Answer carefully, with reasons : If the potential energy of two billard balls depends only on the separation distance between their centres, is the collision elastic or inelastic? (Note, we are talking here of potential energy corresponding to the force during collision, not gravitational potential energy).

Write the law of conservation of total linear momentum for the system of particle.

A molecule in a gas container hits a horizontal wall with speed 200 ms^(-1) and " angle " 30^(@) with the normal , and rebounds with the same speed . Is momentum conserved in the collision ? Is the collision elastic or inelastic ?

State if each of the following statements is true or false. Give reasons for your answer. In an elastic collision of two bodies, the momentum and energy of each body is conserved.

Which of the following potential energy curves in figure cannot describe the elastic collision of two billiard balls ? Here r is the distance between centres of the balls .

NCERT GUJARATI-WORK, ENERGY AND POWER-EXERCISES
  1. State if each of the following statements is true or false. Give reaso...

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  2. Answer carefully, with reasons : In an elastic collision of two bill...

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  3. Answer carefully, with reasons : Is the total linear momentum conser...

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  4. Answer carefully, with reasons : What are the answers to (a) and (b)...

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  5. Answer carefully, with reasons : If the potential energy of two bill...

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  6. A body is initially at rest. It undergoes one-dimensional motion with ...

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  7. A body is moving unidirectionally under the influence of a source of c...

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  8. A body constrained to move along the z-axis of a coordinate system is ...

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  9. An electron and a proton are detected in a cosmic ray experiment, the ...

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  10. A rain drop of radius 2mm falls from a height of 500 m above the groun...

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  11. A molecule in a gas container hits a horizontal wall with speed 200 ms...

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  12. A pump on the ground floor of a building can pump up water to fill a t...

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  13. The bob A of a pendulum released from 30^(@) to the vertical hits anot...

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  14. The bob of a pendulum is released from a horizontal position. If the l...

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  15. A trolley of mass 300 kg carrying sandbag of 25 kg is moving uniformly...

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  16. A body of mass 0.5 kg travels in a straight line with velocity v= ax^(...

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  17. The blades of a windmill sweep out a circle of area A. If the wind f...

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  18. The blades of a windmill sweep out a circle of area A. What is the k...

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  19. The blades of a windmill sweep out a circle of area A. Assume that t...

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  20. A person trying to lose weight (dieter ) lifts a 10 kg mass , one thou...

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