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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.
What else can I help you with?
How long to travel 15 miles doing 30 mph?
It will take about 30 minutes of total driving time at a constant 30 mph. Add some time for stops or delays.
Driving At 25 MPH it will take you about feet to stop your car?
30 feet
Is 30 mph faster or 30 km per hour faster?
30 mph, as a mile is longer than a kilometer.
How many miles can be driven in sixty minutes?
At zero spedd , no miles. at 30 mph = 30 miles At 60 mph 60 miles.
What would your stopping distance be if you are driving 30 miles per hour?
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.
Driving at 70 mph uses more fuel than driving at 50 mph by up to?
30% is the dvla answer
How long will it take to travel 30 miles?
How fast will you be driving? At 60 mph it will take 30 min. At 30 mph it will take 1 hour.
When driving on a dirt road you should?
30 to 35 mph.
What causes a humming noise when I am driving 30 mph?
Wheel bearing.
Driving 20 minutes at 30 mph is what in mileage?
10 miles.
Can a dog catch up to you while you are driving 30 mph?
It's theoretically possible. The maximum speed for a dog or cat is around 30 mph.
How long to travel 15 miles doing 30 mph?
It will take about 30 minutes of total driving time at a constant 30 mph. Add some time for stops or delays.
Driving At 25 MPH it will take you about feet to stop your car?
30 feet
Is 30 mph faster or 30 km per hour faster?
30 mph, as a mile is longer than a kilometer.
How many miles can be driven in sixty minutes?
At zero spedd , no miles. at 30 mph = 30 miles At 60 mph 60 miles.
How many minutes would it take to drive 15 miles?
It would take 30 minutes driving at 30 MPH.
What is the length of time it takes to drive from Texas to Mexico driving 30 mph?
From Laredo, Texas to Mexico it would take less than 1 minute.
