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May a run still be considered successful if the vehicle momentarily stops at some point on the track after the start line and before the 95 centimeter line, and then begins moving again so that it passes the 95 cm line?

Yes. Although note that if the vehicle stops by design for more than 3 seconds (i.e. in order to stall for time), that is not allowed as it is a potential safety hazard and is not within the spirit of the rules.