# Question 0b840

May 17, 2017

$2.5 \cdot 4.8 = 12 k g m {s}^{-} 1$

#### Explanation:

Given:
Mass is a scalar quantity:

$m = 2.5 \text{kg}$

Velocity is a vector:

$\vec{v} = 4.8 \text{m"/"s"" South}$

Momentum is a vector in the same direction as the velocity vector:

$\vec{p} = m \left(\vec{v}\right)$

Substitute in the given quantities:

vecp = 2.5"kg"(4.84.8"m"/"s"" South")#

$\vec{p} = 12 \text{kg m"/"s"" South}$