Question

# A rocket of mass 6000kg is fired from  earth with speed . What should be the rate of ejection of gas, so that it moves with acceleration of . Take

A
B
C
D
Medium
Solution
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Correct option is B)

## For the rocket to move with acceleration , thrust required is -      ...(1)To provide this thrust, let dm/dt be rate of ejection of gas.     ...(2)From (1) & (2),Therefore, rate of ejection of gas should be .

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