Question

What is the average speed of a person standing at the equator for one day, considering Earth's circumference is approximately 40,000 km?

a) 5 km/h
b) 10 km/h
c) 20 km/h
d) 40 km/h

Answer 1

The average speed of a person standing at the equator for one day is approximately 5 km/h.

Step-by-step explanation:

The average speed of a person standing at the equator for one day can be calculated by dividing the circumference of the Earth (approximately 40,000 km) by the time taken for one day (24 hours or 86400 seconds). So, the average speed is 40,000 km / 86400 s = 0.463 km/h. Therefore, the correct answer is option a) 5 km/h.