Rockets Flashcards
1
Q
What is the equation for the conservation of momentum after a rocket ejects dm of fuel at speed ve relative to the rocket?
A
mv = (m+dm)(v+dv) + (-dm)(v+dv-ve)
This beomes m dv = -ve dm
2
Q
What is the rocket equation?
A
v - v0 = Δv = ve * ln(m0/m)
3
Q
What is the equation for the thrust of a rocket?
A
F = m dv/dt = -ve dm/dt