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:
A
momentum of the rocket
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B
mass of the rocket
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C
both A & B
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D
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×v. Hence momentum decreases as mass is decreasing.