(physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter.

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(astronautics) The maximum change in the scalar speed of a rocket if the rocket were operated in a vacuum away from external forces.

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(astronautics) A minimum scalar requirement for rocket delta-v to be able to achieve a particular manoeuvre.

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Delta-v Sentence Examples

Similarly hitting a heavy fixed object at 40 mph and ending up at 0 mph would have a delta vy fixed object at 40 mph and ending up at 0 mph would have a delta v of 40 mph.

Similarly hitting a heavy fixed object at 40 mph and ending up at 0 mph would have a delta v of 40 mph.