The momentum of an object is calculated by the following formula:

Momentum (p) = mass (m) * velocity (v)

In this case:

* Mass (m) = 1 kg

* Velocity (v) = 10 m/s

Therefore, the momentum of the object is:

p = 1 kg * 10 m/s = 10 kg m/s

So, the momentum of the object is 10 kg m/s.