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Standard XII

Physics

Second Law of Motion

A rocket is m...

Question

A rocket is moving at a constant speed in space by burning its fuel and ejecting out the burnt gases through a nozzle.
There is a change in:

momentum of the rocket

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mass of the rocket

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both A & B

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None of the above

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Solution

The correct option is C both A & B
As the rocket is moving upward by ejecting gases, its mass is getting decreased gradually. As momentum is the product of the mass and velocity that is $p = m \times v$ . Hence momentum decreases as mass is decreasing.

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Similar questions

Q. A rocket is moving at a constant speed in space by burning its fuel and ejecting out the burnt gases through a nozzle. Is there any force acting on the rocket? If yes, how much?

Q. A rocket has a mass of

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Q. A rocket of mass

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Q. A rocket has a mass of

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with

50, 000 kg

of fuel being stored on this rocket. The nozzle of the rocket lets out the exhaust gases at a speed of

500 m/s

. If the rocket consumes fuel at the rate of

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, what is the acceleration of the rocket after

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[Take

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]

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A rocket is moving at a constant speed in space by burning its fuel and ejecting out the burnt gases through a nozzle. There is a change in:

The correct option is C both A & BAs the rocket is moving upward by ejecting gases, its mass is getting decreased gradually. As momentum is the product of the mass and velocity that is p=m×v. Hence momentum decreases as mass is decreasing.

A rocket is moving at a constant speed in space by burning its fuel and ejecting out the burnt gases through a nozzle.
There is a change in:

The correct option is C both A & B
As the rocket is moving upward by ejecting gases, its mass is getting decreased gradually. As momentum is the product of the mass and velocity that is $p = m \times v$ . Hence momentum decreases as mass is decreasing.