Final answer:
The momentum of an object with a mass of 3.0 kg traveling at 5.0 m/s east is 15.0 kg·m/s east.
Step-by-step explanation:
To calculate the momentum of an object, you can use the momentum formula p = m × v, where p is momentum, m is mass, and v is velocity. For an object with a mass of 3.0 kg traveling at 5.0 m/s east, the momentum would be:
p = m × v = 3.0 kg × 5.0 m/s = 15.0 kg·m/s east.
Thus, the momentum of the object is 15.0 kg·m/s east.