Question

a body travel a distance of 10 km with the constant speed of 30 km/h and next 40 km at constant speed of 50 km/h find the average speed of whole journey​

Answer 1

Answer:

5/8 km/h

Explanation:

Average speed= total distance÷total time taken. so 10km+40km=50km and 30h+50h=80h. so 50÷80=5/8. if you want you can change it in m/s also