For a rocket, the specific impulse was found to be 250s. Given that t – McqOptions

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1.	For a rocket, the specific impulse was found to be 250s. Given that the thrust force is constant and assuming gravity-free and drag-free conditions, what will the thrust force be for a mass flow rate of the form (4t2-3t) kg/s and a burn duration of 3s?
A.	18375 N
B.	12426 N
C.	25234 N
D.	15595 N
Answer» B. 12426 N

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