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The momentum of a system is conserved...

The momentum of a system is conserved

A

Always

B

Never

C

In the absence of an external force on the system

D

None of the above

Text Solution

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The correct Answer is:
C
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ERRORLESS -NEWTONS LAWS OF MOTION-Conservation of Linear Momentum and Impulse
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  6. A rocket of mass 1000 kg exhausts gases at a rate of 4 kg /sec with a ...

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  9. A man fires a bullet of mass 200 g at a speed of 5 m //s . The gun is ...

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  10. The bullet of 5 g is shot from a gun of mass 5 kg. The muzzle velocity...

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  11. A force of 50 dynes is acted on a body of mass 5 g which is at rest fo...

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  13. The momentum of a system is conserved

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  14. A body of mass 0.25 kg is projected with muzzle velocity 100ms^(-1) fr...

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  15. A bullet is fired from a gun. The force on the bullet is given by F=60...

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  16. A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass...

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  17. A bullet of mass 10 g is fired from a gun of mass 1 kg with recoil vel...

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  18. A rocket can go vertically upwards in earth's atmosphere because

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