Question 1
A person travels from A to B at 39 km/h and returns at 76 km/h. What is the average speed for the entire journey?
Step-by-step:
1. For equal distances, Average Speed = (2 × v1 × v2) / (v1 + v2)
2. = (2 × 39 × 76) / (39 + 76)
3. = 5928 / 115 = 51.5 km/h
1. For equal distances, Average Speed = (2 × v1 × v2) / (v1 + v2)
2. = (2 × 39 × 76) / (39 + 76)
3. = 5928 / 115 = 51.5 km/h