Question

A trains travels from city A to city B with a
constant speed of 10 m/s and returns back to
city A with constant speed of 20 m/s. Find the
average speed during its entire journey.

Answer 1

Answer:

15m/sec

Explanation:

Vavg=(V1+V2) / 2

Vavg=(10+20) /2

Vavg=15m/sec