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The average speed for the entire trip is 9mph.
4km
1/18
W/4 mph
Velocity = distance / time Given d = 72 miles ; t = 4 hour V = 72 miles / 4 hour = 18 miles per hour
The average speed for the entire trip is 9mph.
The average speed is 8 and 8/9 mph.
4km
8.9 miles an hour.
1/18
W/4 mph
40km per hour
Velocity = distance / time Given d = 72 miles ; t = 4 hour V = 72 miles / 4 hour = 18 miles per hour
40 km per hour. 20 x 2 because that is in a half hour.
An hour is 60 minutes, so the cyclist would travel 2.4 x 6=14.4 mph (miles per hour)
The distance is about 24 miles. A world-class cyclist might make it in a half-hour, while an average bicyclist would require about 2 hours at 12 mph.
Average Speed = Total Distance/Total TimeTotal Distance = x + x = 2xTotal Time = x/10 + x/8 = x (1/10 + 1/8) = x ( 4 + 5)/40 = 9x/40Speed = 2x/(9x/40) = (2x * 40)/9x = 80x/9x = 80/9 = 8.9