Answer:
4.8 km/hr ;
0
Explanation:
Based on information plotted on the graph :
Distance traveled by swimmer C = 2400 m
Travel time of swimmer C = 30 minutes
Converting distance to km:
2400 m = 2400 / 1000 = 2.4 km
Converting time to hour :
30 minutes = 30 / 60 = 0.5 hour
Average speed = Distance traveled / time taken
Average speed = 2.4 km / 0.5 hour = 4.8 km/hr
2.)
Swimmer A's average speed during the period 10 to 20 minutes ;
Change in distance /change in time
(400 - 400) / (20 - 10) = 0
Hence, distance traveled is 0
