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# The velocity v2 of a rocket is given by: v2 = v. + Cin (2) where... The velocity v2 of a rocket is given by: v2 = v. + Cin (2) where vi is the initial rocket velocity C is the velocity of the exhaust gases my is the mass of the rocket before the engine is fired m, is the mass of the rocket after the enginge is switched off 5.1 Rearrange the formula to make me the subject. 5.2 If vi = 600 m/s, v2 = 992m/s, C = 3500 m/s and m = 8.5 x 10*kg, find the mass of the rocket after the engine is switched off.

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