A 1000kg rocket is fired from the surface of the earth so that its exhaust speed is 1000m/s relative to the rocket. If the initial acceleration of the rocket is 5m/s2 then the mass of fuel burning per second is (Take, g=10m/s2)

15 kg/s

5 kg/s

10 kg/s

20 kg/sec

A

20 kg/sec

B

15 kg/s

C

5 kg/s

D

10 kg/s

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