Maximum travelling distance of car from 1 L of fuel

So, the work done by the engine, W, is equal to the work done by the retarding force, Fd, where d is the distance travelled. In summary, the task involves determining how many kilometres a car can travel at a constant speed of 60.0 km/h on 1.00 L of fuel, assuming the engine is 5% efficient and the total retarding force of 1500 N due to air resistance. This can be solved by equating the work done by the engine to the work done by the retarding force, and using the formula W = Fd.
  • #1
shannon.leigh
9
0
Sorry 1 and 2 aren't filled in very well but I have absolutely no idea what to do for this question. My brain wasn't designed for physics :(

Homework Statement



Question: A car traveling at 60.0 km/h has a total retarding force of 1500 N due to air resistance. If 1.00 L of petrol can release 40 000 000 J of energy, how many kilometres can the car travel at 60.0 km/h on 1.00 L of fuel (assume that the engine is 5% efficient)?

Homework Equations



I really have no idea, but making a rough guess. . .

s=ut+0.5at^2

or

v^2=u^2 +2as

The Attempt at a Solution



?

Really, I have no idea where to start.

Any help would be greatly appreciated!
 
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  • #2
All the energy that the engine gets from the petrol goes into opposing the work done by the retarding force.
 

FAQ: Maximum travelling distance of car from 1 L of fuel

What factors affect the maximum travelling distance of a car from 1 L of fuel?

The maximum travelling distance of a car from 1 L of fuel is affected by several factors such as the car's fuel efficiency, driving habits, road conditions, and weight of the car. A more fuel-efficient car, smooth driving, and driving on flat roads will increase the maximum distance, while driving on hilly roads and carrying heavier loads will decrease it.

How is the maximum travelling distance of a car from 1 L of fuel calculated?

The maximum travelling distance of a car from 1 L of fuel is calculated by dividing the car's fuel efficiency (in km/L) by the distance unit used (km) and then multiplying it by the volume of fuel (1 L). For example, if a car has a fuel efficiency of 15 km/L, the maximum distance travelled with 1 L of fuel would be 15 km.

Can the maximum travelling distance of a car from 1 L of fuel be increased?

Yes, the maximum travelling distance of a car from 1 L of fuel can be increased by improving the car's fuel efficiency, practicing fuel-saving driving habits, and maintaining the car regularly. Factors like keeping tires inflated, using the right motor oil, and avoiding excessive idling can also help increase the maximum distance.

How does the type of fuel affect the maximum travelling distance of a car?

The type of fuel used can affect the maximum travelling distance of a car. For example, using premium fuel can increase the distance travelled as it contains additives that increase fuel efficiency. However, using a lower octane fuel than recommended can decrease the maximum distance as the car may not run as efficiently.

Is the maximum travelling distance of a car from 1 L of fuel a constant value?

No, the maximum travelling distance of a car from 1 L of fuel is not a constant value. It can vary depending on the factors mentioned above and also on external factors such as weather conditions and traffic. It is also important to note that the maximum distance will decrease as the car consumes fuel during the journey.

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