Question

Enzo’s mother is on a run. She travels at an average speed of 12km/h for the first 10km and an average speed of 8.0 km/h for the last 10km. What is her average speed for the run? (using formula)

Answer 1

Answer:

9.6m/s

Explanation:

average speed for 1st halve is 12 km/h

distance for 1st halve is 10km

average speed for 2nd halve is 8km/h

distance for 2nd halve is 10km

2v1v2/v1+V2

2*12*8/12+8=9.6m/s

Answer 2

bappa morya ganpati bappa