# Is the impulse a vector quantity?

##### 1 Answer

May 1, 2014

Yes, impulse is a vector quantity.

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In the first equation, the average force is a vector quantity, which means that impulse must also be a vector quantity because a scalar times a vector is always a vector.

The second and third equations describe impulse in terms of momentum. Momentum is a vector since it is the product of velocity and mass, therefore impulse must be a vector quantity because the difference of two vectors is still a vector.