# Which has more momentum, an object with a mass of 5kg moving at 3m/s or an object with a mass of 9kg moving at 2m/s?

Mar 31, 2018

The momentum of the second object is larger.

#### Explanation:

The formula for momentum is

$p = m \cdot v$

Therefore you simply multiply mass times velocity for each object.

$5 \text{ kg moving at } 3 \frac{m}{s}$:
p_1 = 5 " kg " * 3 m/s = 15 ("kg*m)/s

$9 \text{ kg moving at } 2 \frac{m}{s}$:
p_2 = 9 " kg " * 2 m/s = 18 ("kg*m)/s

I hope this helps,
Steve