I'm guessing that the answer they're looking for here is that as the speed increases the wind resistance increases more. This means that if you want to go 10 % faster maybe your fuel consumption will increase with 15%. Staying below the speed where wind resistance really begins to hurt lets you get away with using less fuel, which is better for the environment.
30 feet
It will take about 30 minutes of total driving time at a constant 30 mph. Add some time for stops or delays.
30 mph, as a mile is longer than a kilometer.
At zero spedd , no miles. at 30 mph = 30 miles At 60 mph 60 miles.
Most cars can stop from 60 mph in about 100 feet or so. If the relationship is linear then a car should stop from 30 mph in about 50 feet.
30% is the dvla answer
How fast will you be driving? At 60 mph it will take 30 min. At 30 mph it will take 1 hour.
30 to 35 mph.
10 miles.
Wheel bearing.
It's theoretically possible. The maximum speed for a dog or cat is around 30 mph.
30 feet
It will take about 30 minutes of total driving time at a constant 30 mph. Add some time for stops or delays.
30 mph, as a mile is longer than a kilometer.
It would take 30 minutes driving at 30 MPH.
At zero spedd , no miles. at 30 mph = 30 miles At 60 mph 60 miles.
46 minutes.