The initial mass of a rocket is 1000 kg. Calculate at what rate the fuel should be burnt so that the rocket is given an acceleration of 20 ms-2. The gases come out at a relative speed of 500 ms$-$1 with respect to the rocket : [Use g = 10 m/s2]

Question

The initial mass of a rocket is 1000 kg. Calculate at what rate the fuel should be burnt so that the rocket is given an acceleration of 20 ms^-2. The gases come out at a relative speed of 500 ms^$-$1 with respect to the rocket : [Use g = 10 m/s²]

6.0 $\times$ 10² kg s^$-$1

500 kg s^$-$1

10 kg s^$-$1

60 kg s^$-$1

Solution

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