Average velocity is the measure of an object's displacement over a period of time. It is calculated by dividing the total displacement by the total time.
Average velocity takes into account the direction of movement, while average speed only considers the magnitude of movement. This means that average velocity can be negative, indicating movement in the opposite direction, while average speed is always positive.
Kilometers (km) and meters (m) are units of length, while minutes (min) and seconds (s) are units of time. To convert km to m, multiply by 1000. To convert minutes to seconds, multiply by 60. In this case, the cyclist travels 26.7 km, which is equivalent to 26,700 m, and the time is 54 minutes and 16 seconds, which is equivalent to 3,256 seconds.
To calculate average velocity, divide the total displacement (change in position) by the total time. In this case, the cyclist travelled 26,700 m in 3,256 seconds, giving an average velocity of 8.2 m/s.
Yes, average velocity can be negative if the object is moving in the opposite direction of the chosen positive direction. In this case, if the cyclist travelled 26,700 m east and then turned around and travelled 26,700 m west in the same amount of time, the average velocity would be 0 m/s, indicating no overall displacement.