Difference between revisions of "Forest UCM Ch3 Rockets"
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| − | Consider a rocket of mass <math>m</math> moving at a speed <math>v</math> ejecting rocket fuel | + | Consider a rocket of mass <math>m</math> moving at a speed <math>v</math> ejecting rocket fuel for propulsion. |
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<math>m =</math> mass of Fuel + Rocket | <math>m =</math> mass of Fuel + Rocket | ||
| − | |||
<math>-dm =</math> mass of Fuel ejected over time interval <math>dt</math> ( <math>dm</math> = mass lost by rocket < 0) | <math>-dm =</math> mass of Fuel ejected over time interval <math>dt</math> ( <math>dm</math> = mass lost by rocket < 0) | ||
| − | |||
<math>u =</math> velocity of Fuel relative to the Rocket | <math>u =</math> velocity of Fuel relative to the Rocket | ||
| + | <math>v =</math> velocity of rocket before ejecting fuel of mass <math>(-dm)</math> | ||
[[Forest_UCM_MnAM#Rockets]] | [[Forest_UCM_MnAM#Rockets]] | ||
Revision as of 13:17, 13 September 2014
Consider a rocket of mass moving at a speed ejecting rocket fuel for propulsion.
File:Forest UCM Ch3 Rockets Fig.xfig.txt
mass of Fuel + Rocket
mass of Fuel ejected over time interval ( = mass lost by rocket < 0)
velocity of Fuel relative to the Rocket
velocity of rocket before ejecting fuel of mass