# What law explains why a smaller car gets better gas mileage than a larger car?

## What law explains why a smaller car gets better gas mileage than a larger car?

Newton’s second law explains why a small car has better gas mileage than a big car. According to this law, the force required to accelerate the big car (with the greater mass) is greater than the force required to accelerate the small car.

How does Newton’s 2nd law apply to a car?

Newton’s second law states that force equals the mass multiplied by acceleration. So, in an automobile accident, the force of the automobile and its occupants decreases if the time required by the vehicle to stop increases.

### How is Newton’s 2nd law applied in reducing the mass of a race car?

Racing Car. While designing a racing car, the ultimate tendency of the engineers sticks to reduce the mass of the vehicle. This is because, according to Newton’s second law of motion, the mass of an object is inversely associated with acceleration.

Which of Newton’s laws of motion explains why a semi truck has a larger engine than a small car?

Newton’s third law dictates that the forces on the trucks are equal but opposite in direction. With equal change in momentum and smaller mass, the change in velocity is larger for the smaller truck. Since acceleration is change in velocity over change in time, the acceleration is greater for the smaller truck.

#### Why does fuel economy decrease as speed increases?

Speeding increases fuel consumption and decreases fuel economy as a result of tire rolling resistance and air resistance. While vehicles reach optimal fuel economy at different speeds, gas mileage usually decreases rapidly at speeds above 50 miles per hour (mph).

What affects gas mileage the most?

How Your Driving Affects Fuel Economy

• Excessive Short Trips. Your engine works at its most efficient after it warms up.
• Frequent Cold Weather Travel.
• Heavy Braking or Acceleration.
• High Vehicle Weight or Towing Weight.
• Speeding.
• Fuel Injector Problems.
• Oil Type.
• Poor Maintenance.

## How does Newton’s 3rd law apply to cars?

Newtons 3rd law applies to driving because when you drive the action force is the pushing against the road and the reaction is the road pushing against the tires. Also when a car hits a person, the person hits the car. When a car hits telephone pole the pole hits the car.

How does a car use Newton’s third law?

By Newton’s third law, that car pushes on your car with the same force, but in the opposite direction. This force causes you to slow down. One force of the action-reaction force pair is exerted on your friend’s car, and the other force of the force pair is exerted on your car.

### How does the force of the car change as the mass of the car is increased?

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

Why do heavier objects have more inertia?

The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion.

#### When a large truck collides with a car which of the two will experience greater damage?

When a truck and a car collide, the impact of the crash will be considerably greater in the car, because the mass of the truck is so much larger, and therefore will take much longer to stop. This means that the G force in the car will be much higher as it goes from moving to a full stop in a shorter period of time.

When a large truck collides with a small car which vehicle experiences a larger force the truck or the car?

Both vehicles experience the same magnitude of force; there- fore the lightweight car experiences the greater acceleration. The greater force exerted on the truck gives it the greater ac- celeration.

## Why does a car with a large mass use more fuel?

Explain why a car with a large mass might use more fuel than a car with smaller mass. Assume both cars drive the same distance. A greater force is required to accelerate a more massive car, therefore, more engine power and more fuel are needed. What is Newton’s third law of motion?

How do Newton’s forces affect car accidents and collisions?

Car accidents and collisions are based on opposing forces being exerted, often over very short periods of time. Understanding Newton’s forces can help with mitigating the damage of these forces to both car and passenger.

### What happens to a larger vehicle when it hits a smaller vehicle?

The larger vehicle will, therefore, experience a slower deceleration. The smaller vehicle will not only decelerate extremely rapidly, but the larger vehicle may actually crush it (depending on the relative axle height).

What does newton’s second law of motion state?

That an object will remain at rest or moving at a constant velocity unless it is acted upon an unbalanced force. inertia Galileo’s concept of the resistance to a change of motion What does Newton’s second law of motion state? that acceleration depends on the net force acting on the object and on the object’s mass.