UNIVERSIDAD AUTÓNOMA
DE NUEVO LEÓN
FACULTAD DE INGENIERIA
MECÁNICA Y ELÉCTRICA
NOMBRE: Fabrizzio Salvador Guajardo Morales
MATRICULA:1922249
CARRERA: Ingeniería Biomédica
SEMESTRE: 3
Mecánica vectorial
LUGAR: SAN NICOLAS DE LOS GARZA, NUEVO LEÓN
“Mechanics may be divided into three branches: statics, which deals with forces acting on
and in a body at rest; kinematics, which describes the possible motions of a body or
system of bodies; and kinetics, which attempts to explain or predict the motion that will
occur in a given situation. Alternatively, mechanics may be divided according to the kind of
system studied. The simplest mechanical system is the particle, defined as a body so
small that its shape and internal structure are of no consequence in the given problem.
More complicated is the motion of a system of two or more particles that exert forces on
one another and possibly undergo forces exerted by bodies outside of the system.
The principles of mechanics have been applied to three general realms of phenomena.
The motions of such celestial bodies as stars, planets, and satellites can be predicted with
great accuracy thousands of years before they occur. (The theory of relativity predicts
some deviations from the motion according to classical, or Newtonian, mechanics;
however, these are so small as to be observable only with very accurate techniques,
except in problems involving all or a large portion of the detectable universe.) As the
second realm, ordinary objects on Earth down to microscopic size (moving at speeds
much lower than that of light) are properly described by classical mechanics without
significant corrections. The engineer who designs bridges or aircraft may use the
Newtonian laws of classical mechanics with confidence, even though the forces may be
very complicated, and the calculations lack the beautiful simplicity of celestial mechanics.
The third realm of phenomena comprises the behaviour of matter and electromagnetic
radiation on the atomic and subatomic scale. Although there were some limited early
successes in describing the behaviour of atoms in terms of classical mechanics, these
phenomena are properly treated in quantum mechanics.” (BRITANICA,2020)1
Importance of statics
To determine the exact measurements needed for a structure to be secure
To calculate the forces involved in a system
To calculate if a rope is going to break when you use it in a pulley
To calculate the equilibrium of a bar in a wall
The principle of transmissibility
“The principle of transmissibility states that the point of application of a force can be moved
anywhere along its line of action without changing the external reaction forces on a rigid
body. Any force that has the same magnitude and direction, and which has a point of
application somewhere along the same line of action will cause the same acceleration and
will result in the same moment. Therefore, the points of application of forces may be
moved along the line of action to simplify the analysis of rigid bodies.”( moore, 2017)2
The line of action of a force
“In physics, the line of action of a force F is a geometric representation of how the force is
applied. It is the line through the point at which the force is applied in the same direction as
the vector F→.[1][2]
The concept is essential, for instance, for understanding the net effect of multiple forces
applied to a body. For example, if two forces of equal magnitude act upon a rigid body
along the same line of action but in opposite directions, they cancel and have no net effect.
But if, instead, their lines of action are not identical, but merely parallel, then their effect is
to create a moment on the body, which tends to rotate it.”(Wikipedia 2020) 3
The length of a line of action of a force is infinite
I think myself of a 6 because I get really well the Pythagoras theorem but it has always
been a challenge for me to use trigonometric functions.
Bibliographies
Contributor:David L. Goodstein
Article Title:Mechanics
Website Name:Encyclopædia Britannica
Publisher:Encyclopædia Britannica, inc.
Date Published:August 21, 2020
URL:https://www.britannica.com/science/mechanics
Access Date:September 03, 2020
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1
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URLhttps://www.livescience.com/48001-biomedical-engineering.html

Website Title: LiveScience

Article Title: What Is Biomedical Engineering?

Publication Day: 25

Publication Month: SEPTEMBER

Publication Year: 2014

Author: Jim Lucas
2
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URL:http://mechanicsmap.psu.edu/websites/2_equilibrium_concurrent/principle_of_
transmissibility/principleoftransmissibility.html#:~:text=The%20principle%20of%20tr
ansmissibility%20states,forces%20on%20a%20rigid%20body.&text=Because%20o
f%20the%20principle%20of,the%20above%20pairs%20is%20equivalent.

Website Title: Mechanicsmap

Article Title: Principle of transmissibility

Publication Year: 2017
3
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URL:https://en.wikipedia.org/wiki/Line_of_action#:~:text=In%20physics%2C%20the
%20line%20of,forces%20applied%20to%20a%20body.

Website Title: wikipedia

Article Title: Line of action

Publication Day: 13

Publication Month: 03

Publication Year: 2019
4