Impulse 3 : A mechanical jolt delivered to an object. Physically, impulse is a force applied for a period of time, and the System International unit of impulse is the newton- second (abbreviated N-s). See: Impulse Intensity
Federation of American Scientists, Glossary of Acronyms and Terms, Washington, DC,USA 2004. https://fas.org/pubs/_docs/10072004163905.pdf, (DPrep - Amer) {1003}