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Define impulse ....

Define impulse .

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A large force acting for a very short interval of time is called as .Impulsive force.. When a force F acts on a body for a period of time t, then the product of force and time is known as .impulse. represented by .J.
`"Impulse, J"=Fxxt" (1)"`
By Newton.s second law
`F=Deltap//t" "(Delta" refers of change")`
`Deltap=Fxxt" (2)"`
From (1) and (2)
`J=Deltap`
Impulse is also equal to the magnitude of change in momentum. Its unit is `"kg ms"^(-1)` or Ns.
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