Question

Which has more momentum, an object with a mass of `3kg` moving at `14m/s` or an object with a mass of `12kg` moving at `6m/s`?

Answer 1

The object with the mass of 12kg has more momentum.

Explanation:

Know that `p=mv`, where p is momentum, v is velocity, and m is mass. Since all the values are in SI units already, there is no need for conversion, and this becomes just a simple problem of multiplication.
1.`p=(3)(14)=42 kg*m/s`

2.`p=(12)(6)=72kg*m/s`

Therefore, the object of m= 12kg has more momentum.