The average speed is 40 miles per hour.
It is travelling at 75 kmph.
Rate = Distance / Time 50/40 = 1.25 km per min
He drove 20 miles in 50 min. so average was 20 x 60/50 = 24 mph
60sec in a min/20=3*400m = 1200m/min*60(min per hr)= 72000m/h= 72km/h
The average speed of a runner who runs 500.0 m in 1.3 min is 6.41 m/s.
zero
20 km / 45 minutes = 0.444 km/min 0.444 km/min * 60 min/hr = 26.7 km/hr
When you walk a distance of 2 km in 10 minutes your average speed is 0.2 km per minute.
time = distance / speed time = 125/75 = 1.66 hours = 1 hr 40 min
First 30k takes 45 min, second 30k takes 90 min, total 60k in 2¼ hours so average speed = 60 x 4/9 = 26 and 2/3 kph
4:50 min
3 km in 5 min => his average speed is 36 km in 60 min, that is 36 km per hour. Clearly an extremely fast runner and way faster than MY average speed.