Question

If a car weighs 1,750 kg, would you expect its fuel efficiency to be closer to 22 mpg or to 28 mpg? Explain your reasoning.

Answer 1

closer to 22 mpg

Explanation:

Fuel-efficiency is the ability of a car to extract energy from fuel.The more the energy the car can extract from fuel, the greater fuel-efficiency the car has.Heavier vehicles require more energy to move because inertia and rolling resistance is high, leading to high fuel consumption.Reducing weight improves vehicle's efficiency.

For calculations lets assume the figures for passenger automobile;

3000 lbs gets 25.6 mpg

3500 lbs ---------22.0 mpg

3858 lbs----------?

4000 lbs----------19.3 mpg

This is to say it will be closer to 22 mpg