# Engineering 101: Understanding One Meter (1 m) & Weight Measurements

• ThienAn
In summary, a meter is a base unit in the SI system that helps define other units. The modern definition of a meter is 1⁄299,792,458 of a light-second. In regards to weight, there are 4.448 Newtons in a Lbf and one pound-force is approximately equal to the gravitational force exerted on a mass of one avoirdupois pound on the surface of Earth. A slug is a unit of mass that accelerates by 1 ft/s² when a force of one pound-force (lbf) is exerted on it.
ThienAn
To all the engineers or the enginnering students out there. How do you give the definition to one meter (1 m)? More: How much do you weight in Newton, slug, and pound-force (lb_f)?

The meter is a base unit in the SI system. It helps to define other units. Although, according to Wiki, the standard used to define a meter is 1⁄299,792,458 th of a light-second.

In regards to your question about weight, there are 4.448 Newtons in a Lbf. You can do the math from there to convert any other numbers. Be careful, you are including a unit of mass (the slug) in with units of force. They are not interchangeable.

All SI units can be decomposed into http://en.wikipedia.org/wiki/SI_base_unit" in the SI system.

Like Fred said, the modern fundamental definition of a meter is 1⁄299,792,458 of a light-second. Historically it was defined as 1/10,000,000 of the distance between the poles of the Earth passing through Paris. http://en.wikipedia.org/wiki/Meter

A Newton is a unit of force, which is in turn decomposed into three fundamental units- Kilograms, Seconds, and Meters. A Newton can be decomposed into $$\frac{kg*m}{s^2}$$, a defintion that utilizes only fundamental SI units. According to Wikipedia:

Wikipedia.org said:
The Newton is the amount of force that is required to accelerate a kilogram of mass at a rate of one meter per second squared.
http://en.wikipedia.org/wiki/Newton

A pound-force is a little less obvious because empirical units are not as clean as SI. however, the general definition according to Wiki:

Wikipedia.org said:
One pound-force is approximately equal to the gravitational force exerted on a mass of one avoirdupois pound on the surface of Earth.
http://en.wikipedia.org/wiki/Pound_force

A slug is a unit of mass that is even harder to visualize, but the basic definition is:

Wikipedia.org said:
The slug is an English unit of mass. It is a mass that accelerates by 1 ft/s² when a force of one pound-force (lbf) is exerted on it. Therefore a slug has a mass of about 32.17405 pound-mass or 14.5939 kg
http://en.wikipedia.org/wiki/Slug_(mass)

Last edited by a moderator:

## 1. What is the significance of understanding one meter and weight measurements in engineering?

Understanding one meter and weight measurements is crucial in engineering as it allows engineers to accurately design and construct structures and machines. These measurements help ensure that the final product will be safe, functional, and efficient.

## 2. How is one meter defined in the engineering world?

In engineering, one meter is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second. This definition was adopted in 1983 by the General Conference on Weights and Measures.

## 3. Why is the metric system used in engineering instead of the imperial system?

The metric system, which includes one meter as a unit of length, is used in engineering because it is a standardized system that is based on logical conversions and is used globally. This allows for easier communication and collaboration between engineers from different countries.

## 4. How does weight measurement play a role in engineering?

Weight measurement is an essential aspect of engineering as it helps determine the structural integrity and load-bearing capacity of materials and structures. It also allows engineers to make informed decisions about the materials and design choices for a project.

## 5. Can you provide some common examples of one meter and weight measurements in engineering?

One meter and weight measurements are used in various engineering applications, such as measuring the length and weight of building materials, determining the dimensions and weight of machinery, and calculating the weight-bearing capacity of bridges and other structures. They are also used in the design and construction of roads, vehicles, and airplanes.

• General Engineering
Replies
5
Views
1K
• General Engineering
Replies
14
Views
2K
• Introductory Physics Homework Help
Replies
6
Views
608
• General Engineering
Replies
25
Views
3K
• General Engineering
Replies
13
Views
2K
• Other Physics Topics
Replies
2
Views
3K
• Aerospace Engineering
Replies
25
Views
4K
• Mechanics
Replies
13
Views
2K
• General Engineering
Replies
5
Views
3K
• Introductory Physics Homework Help
Replies
9
Views
302