Question

3. A man starts walking from a point on a circular field of radius 0.5 km and 1 hour later he finds
himself at the same point where he initially started
(a) What is the average speed for the whole journey he travelled? What is the average velocity of this
man for the same?​

Answer 1

Answer:

3.14 km/hour

Explanation:

If this man walks around a circular field and comes back to the same point, he has covered a distance which is equal to the circumference of the circle. Thus, average speed he travelled = Distance/time = circumference time = π (0.5) (2)/1 hour = 3.14 km/hour (approximately).