In physics, momentum is the quantity of motion an object has, depending on its mass and speed. In everyday language, momentum means a force that keeps something moving or growing, like a project that is gaining momentum.
From Latin “momentum,” meaning “movement, motion, influence,” from “movere,” “to move.” It was adopted into scientific language to describe motion in a measurable way.
Momentum is why a small bullet can be powerful and a slow-moving truck is still hard to stop—mass and speed team up. We borrow this physics idea for life and politics: once something gets moving, it tends to keep going.
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