A runner moves 60 meters north and then 80 meters south in 20 seconds. Which statement is correct about her average speed and average velocity?
Average speed is greater than average velocity
Average speed = total distance / total time = (60 + 80)/20 = 140/20 = 7 m/s.
Displacement = 80 − 60 = 20 m south, so average velocity = 20/20 = 1 m/s southward.
Since 7 m/s > 1 m/s, average speed is greater than average velocity.
Hence, the answer is Average speed is greater than average velocity.
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Which of the following quantities specifies its speed with direction?
The basic unit of speed of an object is ______.
- Which of the following represents non-uniform linear velocity?
- Which of the following describes the nature of the average speed?
- An object starts from rest at x = 0 m and t = 0 s. It moves with a constant acceleration of \(2 \text{ m/s}^2\) along the x-axis. What is its average velocity between time 1 s and 5 s?
