# Finding total weight of a car/ center mass

• wes335
In summary, the total weight of the car is 4021 lb and the horizontal distance from the rear axle to the center mass is approximately 4.98 feet.
wes335
1. A car has a wheelbase of 9.57 ft. At a weigh station, the driver puts only the front wheels on the scale and measures a weight of 2091 lb. The driver then moves the car and places the rear wheels on the scale and measures a weight of 1930 lb. Find the total weight of the car. Find the horizontal distance from the rear axle to the center mass of the car.

2. Either I'm making this problem way harder than it is, or a I can't find a formula for it.

3. Total weight=2091+1930=4021 lb? Center mass= 4.97766 ft from rear axle.

wes335 said:
1. A car has a wheelbase of 9.57 ft. At a weigh station, the driver puts only the front wheels on the scale and measures a weight of 2091 lb. The driver then moves the car and places the rear wheels on the scale and measures a weight of 1930 lb. Find the total weight of the car. Find the horizontal distance from the rear axle to the center mass of the car.

2. Either I'm making this problem way harder than it is, or a I can't find a formula for it.

3. Total weight=2091+1930=4021 lb? Center mass= 4.97766 ft from rear axle.
That looks good. You should round off the distance from the rear axle to the center of mass to 4.98 feet. Looks like you found the right formula.

## 1. How do you find the total weight of a car?

The total weight of a car can be found by using a scale or weighing the individual components of the car, such as the engine, body, and tires, and then adding them together.

## 2. What is the center mass of a car?

The center mass of a car, also known as the center of gravity, is the point at which the weight of the car is evenly distributed. It is typically located near the middle of the car, but can shift depending on the distribution of weight.

## 3. Why is it important to know the total weight and center mass of a car?

Knowing the total weight and center mass of a car is important for safety and performance reasons. It can affect the car's handling, stability, and fuel efficiency. It is also important for determining the appropriate loading capacity and weight limits for the car.

## 4. How does the total weight and center mass of a car affect its performance?

The total weight and center mass of a car can affect its performance in various ways. A heavier car may have slower acceleration and braking, while a car with a lower center mass may have better handling and stability. It is important for car manufacturers to find a balance between weight and center mass for optimal performance.

## 5. Can the total weight and center mass of a car change?

Yes, the total weight and center mass of a car can change depending on factors such as modifications, additions, and distribution of weight within the car. It is important to regularly check and adjust these measurements to ensure safe and efficient performance.

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