Rocket in Space! :surprised

1. Nov 6, 2004

the4thcafeavenue

can anyone explain the concept of rocket propulsion, in other words, M*delta(V)=delta(m)*Ve?

Thanks guyz

2. Nov 6, 2004

Tide

An object of mass M expels a portion of its mass dm at speed v_e. The remaining mass must recoil in the opposite direction to conserve momentum.