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

Feb 19, 2016

#### Answer:

Momentum is given by $p = m v$, 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:

$p = m v = 5 \cdot 16 = 80$ $k g m {s}^{-} 1$

For the second object:

$p = m v = 5 \cdot 20 = 100$ $k g m {s}^{-} 1$