Question

1. give an example from your daily life where speed and velocity would have different values.
2. a person ran 150 meters in 78 seconds. what is the average speed of this person? (remember: s=d/t)
3. a car traveled 8,015 meters along a straight highway in 3,467 seconds. how long did it take the car to travel the distance? (s=d/t)

Explanation:

Step1: For question 3

Use the formula $S = \frac{d}{t}$, where $d = 150$ m and $t=78$ s.
$S=\frac{150}{78}\approx1.92$ m/s

Step2: For question 4

The problem statement already provides the time taken for the car to travel the distance as 3,467 seconds. There is no need for further calculation using the formula $S = \frac{d}{t}$ as the question is asking for time which is already given.

Answer:

1. Suppose a person runs around a circular track. The speed is the total distance covered per unit - time (e.g., if they run one - lap of 400 meters in 2 minutes, speed = 400 m/120 s). But the velocity is zero because the displacement (the straight - line distance from the starting point to the ending point) is zero as they end up at the same place they started.
2. 1.92 m/s
3. The time is already given as 3,467 seconds.