Question

Which has more momentum, a `8kg` object moving at `9m/s` or a `4kg` object moving at `7m/s`?

Answer 1

The one with the mass of `8` `kg` and moving `9` `m/s` has more momentum.

Explanation:

The momentum of an object can be calculated using the formula p=mv where p is the momentum and m is the mass and v is the velocity.

So, the momentum of the first object is:

`p=mv`

`=(8kg)(9m/s)`

`=72N s`

while the second object:

`p=mv`

`=(4kg)(7m/s)`

`=28N s`

So the object which has more momentum is the first object