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Answer carefully, with reasons : If th...

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).

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Elastic.
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NCERT GUJARATI-WORK, ENERGY AND POWER-EXERCISES
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  2. Answer carefully, with reasons : What are the answers to (a) and (b)...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. A family uses 8 kW of power. Direct solar energy is incident on the ...

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