If the force on a rocket moving in force free space with an exhaust velocity of gases \( 300 \ma...

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If the force on a rocket moving in force free space with an exhaust velocity of gases \( 300 \mathrm{~m} / \mathrm{sec} \) is \( 210 \mathrm{~N} \), then the rate of combustion of the fuel, is :-
(1) \( 0.7 \mathrm{~kg} / \mathrm{s} \)
(2) \( 1.4 \mathrm{~kg} / \mathrm{s} \)
(3) \( 2.7 \mathrm{~kg} / \mathrm{s} \)
(4) \( 10.7 \mathrm{~kg} / \mathrm{s} \)
\( \mathrm{P} \)
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