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- Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. The concept of force is commonly explained in terms of Isaac Newton’s three laws of motion.
www.britannica.com/science/force-physics
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Dec 29, 2020 · It is assumed that the reader has been introduced to Newtonian mechanics applied to one or two point objects. This chapter reviews Newtonian mechanics for motion of many-body systems as well as for macroscopic sized bodies. Newton’s Law of Gravitation also is reviewed.
- 1: Basics of Newtonian Mechanics
Defines a body in the context of engineering mechanics....
- 1.2: Forces
The magnitude of force is measured in units of mass times...
- 2: Review of Newtonian Mechanics
A fundamental goal of mechanics is to determine the...
- 1: Basics of Newtonian Mechanics
Aug 17, 2024 · Defines a body in the context of engineering mechanics. Discusses the differences between rigid and deformable bodies, and between particles and extended bodies. 1.3: Position, Displacement, Velocity, and Acceleration; 1.4: Forces Definition of a force. Quantities of interest of a force: magnitude, direction, points of application.
Aug 23, 2024 · Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. The concept of force is commonly explained in terms of Isaac Newton’s three laws of motion. Because force has both magnitude and direction, it is a vector quantity.
- The Editors of Encyclopaedia Britannica
Jul 28, 2021 · The magnitude of force is measured in units of mass times length over time squared. In metric units the most common unit is the Newton (N), where one Newton is one kilogram times one meter over one second squared. This means that a force of one Newton would cause a one-kilogram object to accelerate at a rate of one meter per second squared.
Nov 21, 2020 · A fundamental goal of mechanics is to determine the equations of motion for an n−body system, where individual forces acts on the individual mass of the n-body system. Newton’s second-order equation of motion must be solved to calculate the instantaneous spatial locations, velocities, and accelerations for each mass.
The SI unit of force is the newton (N), and force is often represented by the symbol F. Force plays an important role in classical mechanics. The concept of force is central to all three of Newton's laws of motion. Types of forces often encountered in classical mechanics include elastic, frictional, contact or "normal" forces, and gravitational.
At ̄rst glance these laws seem relatively straightforward. A massive body moves and accelerates in response to forces, which can come from interaction with other bodies, either through short-range interactions (ie., when they touch) or long-range interactions such as gravity.
