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Grade: upto college level

                        

Consider a rocket at rest in empty space. What must be its mass ratio (ratio of initial to final mass) in order that, after firing its engine, the rocket's speed is (a) equal to the exhaust speed and (b) equal to twice the exhaust speed?

5 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
471 Points
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Therefore, the mass ratio for which the final velocity of rocket is equal to the relative velocity of exhaust gases is 2.72.
233-716_1.PNG

Therefore, the mass ratio for which the final velocity of rocket is equal to the twice the relative velocity of exhaust gases is 7.38.
5 years ago
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