Changing velocity

Joanna Dark

I'm curious as to how a vehicle might change velocity or direction in space? Do virtual particles act as a medium by which an engine can achieve this? Or does an engine not need a medium and why?

malawi_glenn

conseravaton of momentum.

If a space man is moving away from his space ship, he can throw a thing in the direction he is moving and he will then move back towards the space ship due to conseravation of linear momenta.

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Joanna Dark	Changing velocity Tweet I'm curious as to how a vehicle might change velocity or direction in space? Do virtual particles act as a medium by which an engine can achieve this? Or does an engine not need a medium and why?

malawi_glenn Blog Entries: 9 Recognitions: Homework Help Science Advisor	conseravaton of momentum. If a space man is moving away from his space ship, he can throw a thing in the direction he is moving and he will then move back towards the space ship due to conseravation of linear momenta.