Momentum (7)
I believe the answer is:
impetus
(Other definitions for impetus that I've seen before include "Force that moves something along" , "Momentum, stimulus" , "Motivation" , "Moving force" , "Catalyst" .)
I believe the answer is:
impetus
(Other definitions for impetus that I've seen before include "Force that moves something along" , "Momentum, stimulus" , "Motivation" , "Moving force" , "Catalyst" .)