1.) A person walks 12.5 km in 1.9 h. What is the person's
average velocity in km/h and m/s?

1. 6.56 km/hr

2. 1.83 m/s

Explanation:

The average velocity/speed can be calculated using the formula;

Average speed/velocity = distance/time

According to the information provided in the question, distance = 12.5km, time = 1.9h

Average velocity in km/hr = 12.5/1.9

= 6.578

= 6.56km/hr

However, in order to calculate the average speed in m/s, we have to convert distance in km to m, and time in hour to seconds.

1km = 1000m

12.5km = 12.5 × 1000

= 12500m

1 hour = 3600seconds

1.9hours = 1.9 × 3600

= 6840seconds

Average velocity = 12500/6840

= 1.827

= 1.83m/s

your answer should be c) enjoy!

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