I am attempting to work out the changing velocity of a rocket on Excel. However, I cannot use the simple:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int{a} dt = v[/tex].

[tex]at + C = v[/tex].

If thrust is constant at 20 000 and the rocket is 2000kg with 600kg not made of fuel and 20kg lost every second, then would the equation be:

[tex]\int{\frac{20000}{1400-20t}} dt = v[/tex].

This is forgetting about acceleration due to gravity for the moment.

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# Homework Help: Rocket Velocity

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