Question

Which condition is necessary for relation ΔP = mΔv to hold true?

a) v = c
b) v >> c
c) v << c
d) none of above​

Answer 1

Explanation:

Delta-v (literally "change in velocity"), symbolised as ∆v and pronounced delta-vee, as used in spacecraft flight dynamics, is a measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launching from or landing on a planet or moon, or an in-space orbital maneuver. It is a scalar that has the units of speed. As used in this context, it is not the same as the physical change in velocity of the vehicle.

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