Question

Which has more momentum, a `5` `kg` object moving at `16` `ms^-1` or a `5` `kg` object moving at `20` `ms^-1`?

Answer 1

Momentum is given by `p=mv`, momentum equals mass times velocity. In this case, the mass is constant, so the object with the greater velocity has the greater momentum.

Explanation:

Just to check, we can calculate the momentum for each object.

For the first object:

`p=mv=5*16=80` `kgms^-1`

For the second object:

`p=mv=5*20=100` `kgms^-1`