moment of inertia which course

What is inertia in civil engineering?

Moment of Inertia. The moment of inertia about any point or axis is the product of the area and the perpendicular distance between the point or axis to the centre of gravity of the area. This is called the first moment of area.

What is moment of inertia mechanics?

moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the opposition that the body exhibits to having its speed of rotation about an axis altered by the application of a torque (turning force). The axis may be internal or external and may or may not be fixed.

What is moment of inertia in strength of materials?

What is a Moment of Inertia? • It is a measure of an object's resistance to changes to its. rotation. • Also defined as the capacity of a cross-section to resist. bending.

What is unit of area moment of inertia?

The SI unit of moment of inertia is kg. m2.

What is moment of inertia in physics class 11?

Moment of inertia can be defined as a quantity that expresses a body's tendency to resist angular acceleration, which is equal to the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation.

Who Discovered moment of inertia?

The law of inertia was first formulated by Galileo Galilei for horizontal motion on Earth and was later generalized by René Descartes.

Why do engineers do mechanics?

Engineering Mechanics provides the “building blocks” of statics, dynamics, strength of materials, and fluid dynamics. Engineering mechanics is the discipline devoted to the solution of mechanics problems through the integrated application of mathematical, scientific, and engineering principles.

What is the meaning of moment in engineering?

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force.

What is moment of inertia of beam?

The Area Moment Of Inertia of a beams cross-sectional area measures the beams ability to resist bending. The larger the Moment of Inertia the less the beam will bend. The moment of inertia is a geometrical property of a beam and depends on a reference axis.

Is inertia a force?

Inertia is a force which keeps stationary objects at rest and moving objects in motion at constant velocity. Inertia is a force which brings all objects to a rest position. All objects have inertia. A more massive object has more inertia than a less massive object.

What is the SI unit of inertia class 9?

kgInertia: The natural tendency of an object to resist a change in their state of rest or of uniform motion is called inertia. The mass of an object is a measure of its inertia. Its S.I. unit is kg.

What is dimension of moment of inertia?

Moment of Inertia = Mass × [Radius of Gyration]2. Or, MOI = [M1 L0 T0] × [M0 L1 T0]2 = M1 L2 T0. Therefore, the moment of inertia is dimensionally represented as M1 L2 T0.

Lecture Description

goo.gl/0GfJTT for more FREE video tutorials covering Engineering Mechanics (Statics & Dynamics) The objectives of this video are to introduce moment of inertia concept & to look at standard shape.

Course Description

Mechanics, the study of forces and physical bodies, underpins a very large proportion of all forms of engineering. A thorough understanding of mechanics is essential to any successful engineer. This course helps develop an understanding of the nature of forces with consideration for how they may be simplified in an engineering context.

How to find moment of inertia?

Note: The moment of inertia of a complicated object is found by adding up the moments of each individual piece (Figure 7.2 above is the sum of two Figure 7.1 components).

Which concept plays the same role in the description of the rotation of a rigid bodyas mass?

Familiarize yourself with the concept of moment of inertia, I, whichplays the same role in the description of the rotation of a rigid bodyas mass plays in the description of linear motion.

What would happen if a force of 5 N was applied to the mass perpendicular to the rod?

If a force of 5 N were applied to the mass perpendicular to the rod (to make the lever arm equal to r)thetorqueisgivenby: ⌧ = Fr= (5 N)(2 m) = 10 N m

What is the principle of inertia?

The principle of inertia, which originated with Aristotle for "motions in a void", states that an object tends to resist a change in motion. According to Newton, an object will stay at rest or stay in motion (i.e. maintain its velocity) unless acted on by a net external force, whether it results from gravity, friction, contact, or some other force. The Aristotelian division of motion into mundane and celestial became increasingly problematic in the face of the conclusions of Nicolaus Copernicus in the 16th century, who argued that the Earth is never at rest, but is actually in constant motion around the Sun. Galileo, in his further development of the Copernican model, recognized these problems with the then-accepted nature of motion and, at least partially, as a result, included a restatement of Aristotle's description of motion in a void as a basic physical principle:

What does inertia mean in science?

Inertia comes from the Latin word, iners, meaning idle, sluggish. Inertia is one of the primary manifestations of mass, which is a quantitative property of physical systems. Isaac Newton defined inertia as his first law in his Philosophiæ Naturalis Principia Mathematica, which states:

What causes an object to move at its current velocity?

Thus, an object will continue moving at its current velocity until some force causes its speed or direction to change. On the surface of the Earth, inertia is often masked by gravity and the effects of friction and air resistance, both of which tend to decrease the speed of moving objects (commonly to the point of rest).

What is the resistance of an object to any change in its velocity?

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them. Inertia comes from the Latin word, iners, meaning idle, ...

What is Buridan's theory of inertia?

Despite the obvious similarities to more modern ideas of inertia, Buridan saw his theory as only a modification to Aristotle's basic philosophy, maintaining many other peripatetic views, including the belief that there was still a fundamental difference between an object in motion and an object at rest.

Which philosopher believed that objects would move only as long as force was applied to them?

This misled the philosopher Aristotle to believe that objects would move only as long as force was applied to them. The principle of inertia is one of the fundamental principles in classical physics that are still used today to describe the motion of objects and how they are affected by the applied forces on them.

What is circular inertia?

This notion which is termed "circular inertia" or "horizontal circular inertia" by historians of science, is a precursor to, but distinct from, Newton's notion of rectilinear inertia.