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A bodyof mass 2 kg moves at speed of 4 m...

A bodyof mass 2 kg moves at speed of `4 m//s` and makes head on collision with body of mass 1 kg moving with speed `2 m//s` in opposite direction. What is velocity of two bodies after collision?

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CHETANA PUBLICATION-LAWS OF MOTION -EXERCISE
  1. A marble of mass 2m travelling at 6 cm//s is directly followed by anoo...

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  2. Two bodies of masses m and 2m, moving with initial velocities 50 m//s ...

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  3. A bodyof mass 2 kg moves at speed of 4 m//s and makes head on collisio...

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  4. A body of mass 0.5 kg moving with a velocity of 6 m//s collides with a...

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  5. A ball is dropped on a plane horizontal surface from height H. The bal...

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  6. A spring ball of mass 0.5 kg is dropped from some height. On falling f...

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  7. A ball orf mass 100 g dropped on the ground from 5 m bounces repeatedl...

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  8. One of the effects of a force is to change the momentum. Define the qu...

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  9. A bullet of mass 0.1 kg moving horizontally with a velocity of 20 m//s...

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  10. While rotating an object or while openning a door or a water tap we ap...

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  11. Why is the moment of a couple independent of the axis of rotation even...

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  12. A force vecF = (3veci + 2vecj - 4veck) N acts on a particle. The posit...

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  13. Linear velocity of a rotating fan as a whole generally zero. Is it in ...

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  14. Define centre of mass.

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  15. Define and explain rotational equilibrium:

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  16. How can the centre of mass be mathematically determined or understood?

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  17. State any 6 characteristics of centre of mass:

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  18. Define Centre of gravity:

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  19. Why do we need to know the centre of mass of an object? For which obje...

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  20. The mass of the Moon is 0.0123 times that of the Earth and the separat...

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