A rocket of mass 40kg has 160kg fuel. Th...

A rocket of mass `40kg` has `160kg` fuel. The exhaust velocity of the fuel is `2.0km//s`. The rate of consumption of fuel is `4kg//s`. Calculate the ultimate vertical speed gained by the rocket. `(g=10m//s^2)`

`2.82 kms^(-1)`

`4.82 kms^(-1)`

`3.61 kms^(-1)`

`5.62 kms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:

`u_(0)=-"gt",V=u_(0)+u log_(e)((m_(0))/(m))`

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