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For perfectly elastic collision...

For perfectly elastic collision

A

`v_2 - _1 = u_2 - u_1`

B

`v_1 - v_2 = u_1 - u_2`

C

`v_2 - v_1 = u_1 - u_1`

D

`v_2 - v_1 = frac(u_1 + u_2)(2)`

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TARGET PUBLICATION-LAWS OF MOTION-EXERCISE
  1. When two bodies stick together after collision, the collision is said ...

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  2. Which of the following is NOT an example of inelastic collision?

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  3. For perfectly elastic collision

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  4. When a massive body suffers an elastic collision with a stationary li...

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  5. A ball of mass 5 kg travelling with velocity of 15 cm/s makes a head o...

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  6. The ratio of relative velocity of separation after collision to the re...

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  7. Choose the correct options A block of mass m moving at a speed of u c...

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  8. A body of mass 0.1 kg travelling with a velocity of 5 m/s, collides h...

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  9. A body of mass m moving with velocity 3km//h collides with a body of m...

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  10. Choose the correct options A ball of mass 250 g moving with 20 m//s s...

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  11. Choose the correct options The turning effect of the applied force doe...

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  12. The ability of a force to produce rotational motion is measured by its...

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  13. The direction of torque is given by .

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  14. The unit of moment of force is same as .

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  15. Torque can NOT be given by

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  16. A rigid body is rotating about an axis. The best way to stop it is app...

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  17. What is the torque of force vec F = (2hati -2hatj - 4hatk) N acting at...

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  18. Choose the correct options A mass of 10 kg is suspended from a rope wo...

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  19. is a pair of equal and parallel forces acting in opposite directions a...

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  20. The moment of couple is independent of

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