Rolling resistance is a force that resists the motion of a car’s wheels rolling along the ground. It is caused by a variety of factors such as the friction between the tires and the road the deformation of the tires as they roll and the gravitational force acting on the car.
Rolling resistance accounts for a small percentage of a car’s fuel economy but it can have a significant impact on a car’s performance. For example a car with a high rolling resistance will require more power to maintain a given speed than a car with a low rolling resistance.
There are a number of ways to reduce rolling resistance such as using low-rolling-resistance tires optimizing the tire’s tread design and reducing the weight of the car.
What is rolling resistance in a car?
Answer: Rolling resistance is the force that a tire exerts on the road while rolling.
It is caused by the deformation of the tire as it rolls and by the friction between the tire and the road.
How does rolling resistance affect a car’s fuel economy?
Answer: Rolling resistance consumes energy which reduces the fuel economy of a car.
How can rolling resistance be reduced?
Answer: Rolling resistance can be reduced by using tires with a lower rolling resistance coefficient and by inflating the tires to the proper pressure.
What are the benefits of reducing rolling resistance?
Answer: Reducing rolling resistance can improve a car’s fuel economy and reduce emissions.
What are the drawbacks of reducing rolling resistance?
Answer: Lower rolling resistance tires may have shorter tread life and may be more expensive.
What are the benefits of reducing rolling resistance for long-distance trucking?
Answer: Reducing rolling resistance can improve fuel economy which can save trucking companies money on fuel costs.
What are the drawbacks of reducing rolling resistance for long-distance trucking?
Answer: Lower rolling resistance tires may have shorter tread life and may be more expensive.
In addition trucks may be unable to achieve the same level of traction with lower rolling resistance tires which could be a safety concern.
How does rolling resistance affect handling?
Answer: Reducing rolling resistance can improve a car’s handling by reducing the inertia of the wheels.
How does rolling resistance affect braking?
Answer: Reducing rolling resistance can improve a car’s braking by reducing the inertia of the wheels.
How does rolling resistance affect acceleration?
Answer: Reducing rolling resistance can improve a car’s acceleration by reducing the inertia of the wheels.
What are the benefits of reducing rolling resistance for racing?
Answer: Reducing rolling resistance can improve a car’s acceleration handling and braking.
What are the drawbacks of reducing rolling resistance for racing?
Answer: Lower rolling resistance tires may have shorter tread life and may be more expensive.
In addition racing cars may be unable to achieve the same level of traction with lower rolling resistance tires.
What effect does rolling resistance have on emissions?
Answer: Rolling resistance consumes energy which increases emissions.
What effect does rolling resistance have on fuel economy?
Answer: Rolling resistance consumes energy which reduces the fuel economy of a car.
What is the relationship between rolling resistance and speed?
Answer: Rolling resistance increases with speed.
