Question

a car moves 100 meters north in 10 seconds. what is its average velocity?

choose an answer
10 m/s north
10 m/s
1000 m/s north
it cannot be determined

Explanation:

Step1: Identify displacement and time

$$\vec{d} = 100\text{ m north}, \quad t = 10\text{ s}$$

Step2: Calculate average velocity

$$\vec{v}_{\text{avg}} = \frac{\vec{d}}{t} = \frac{100\text{ m north}}{10\text{ s}} = 10\text{ m/s north}$$

Answer:

10 m/s north