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A bullet of mass 20 g is fired with spee...

A bullet of mass 20 g is fired with speed `400 m s^-1` by a gun of mass 8 kg. Find the recoil velocity of the gun.

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JBD PUBLICATION-Model Test Paper 9-EXERCISE
  1. Define absolute error.

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  2. A car crosses a pole with velocity 20 m s^-1 and another pole with vel...

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  3. A bullet of mass 20 g is fired with speed 400 m s^-1 by a gun of mass ...

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  4. The force F= (2 + 4x^2 + 2x^3) N acting on a body displaces from zero ...

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  5. State and explain the law of conservation of linear momentum. Explain ...

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  6. Why we do not feel the force of gravitation in dialy life?

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  7. Using time velocity graph,derive the relationv^2-u^2 = 2aS,where every...

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  8. Derive an expression for aceleration of a bdy moving down an inclined ...

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  9. Prove that in an elastic collision the value of co-eeficient of restit...

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  10. How does value of acceleration due to gravity vary with depth

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  11. Determine excess of pressure in side liquid drop

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  12. What is heat engine?

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  13. Define the molar specific heats fo a gas and find a relation btween th...

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  14. Write the unit of angular momentum.

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  15. Prove the theorem of parallel axes.

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  16. Define torque. Discuss the rotational motion of a single particle in a...

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  17. State Theorem of perpendicular axis.

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  18. What is the S.l. unit of surface tension ?

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  19. Define terminal velocity and find an expression for it.

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  20. Define coefficient of viscosity. Give its unit.

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