# SI unit of impulse is

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SI unit of impulse is
1. Nm2
2. Js-1
3. Jm-1
4. Ns

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Correct Answer - Option 4 : Ns

The correct answer is option 4) i.e. Ns

CONCEPT:

• Impulse (J): The change in momentum of an object when the object is acted upon by a force for a certain amount of time is called impulse. Impulse is expressed mathematically as

Δp = FΔt

Where Δp is the change in momentum, F is force, and Δt is the time taken.

EXPLANATION:

Impulse is given by Δp = FΔt

The SI unit of force is N, and that of time is s.

• Hence, the SI unit of impulse is Ns.