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6. On what does the effect of force acting on an objerdepend? What is impulse of force? It is a vector quantityor scalar quantity? State its SI unit.

Answer»

In classical mechanics,impulse(symbolized by J or Imp) is the integral of aforce, F, over the time interval, t, for which it acts. Sinceforceis a vector quantity,impulseis also a vector in the same direction. ... A resultantforcecauses acceleration and a change in the velocity of the body for as long as it acts.

SI unit:

Newton second (N⋅s)

Other units:

pound⋅s

Common symbols:

J, Imp



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