Quick question: If a car speed increases, does its weight increase or decrease?

In summary, the weight of a car does not change as its speed increases due to the constant force of gravity. Some people may mistakenly believe that a car's weight increases with speed due to the feeling of inertia. There is no direct relationship between a car's speed and weight, as they are determined by different factors. However, a heavier car may have a slower maximum speed and different handling and performance compared to a lighter car.
  • #1
wajed
57
0
why? why not?
 
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  • #2
Yes, because weight is related to relativistic mass, not rest mass? But I should really brush up on the submarine paradox before committing too strongly..
 
  • #3
Yes, because gasoline is burnt and vented as exhaust. Unless it's not your normal car...
 
  • #4
wajed said:
why? why not?

You must show your own work in order for us to help you on homework/coursework questions. What are your thoughts on why or why not?
 

FAQ: Quick question: If a car speed increases, does its weight increase or decrease?

1. Does the weight of the car increase or decrease as its speed increases?

The weight of the car does not change as its speed increases. Weight is a measure of the force of gravity on an object, and this force does not change with an increase in speed.

2. Why do some people think that a car's weight increases as its speed increases?

Some people may think this because of the physical sensation of inertia. As the car speeds up, passengers may feel a force pushing them back into their seats, giving the illusion that the weight of the car has increased. However, this is due to their own bodies experiencing an acceleration, not a change in the car's weight.

3. Is there any relationship between a car's speed and its weight?

No, there is no direct relationship between a car's speed and its weight. The weight of a car is determined by its mass and the force of gravity, while its speed is determined by its engine power, aerodynamics, and other factors.

4. Can increasing a car's weight affect its speed?

Yes, increasing a car's weight can affect its speed. A heavier car will require more energy to accelerate and maintain a certain speed, so it may have a slower maximum speed compared to a lighter car with the same engine power.

5. How does the weight of a car affect its handling and performance?

The weight of a car can affect its handling and performance in various ways. A heavier car may have more stability and grip on the road, but it may also have a longer braking distance and be less agile. On the other hand, a lighter car may have quicker acceleration and be easier to maneuver, but it may also be more prone to skidding and losing control. Overall, the weight of a car is just one factor among many that can impact its handling and performance.

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