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A rebound collision

A rebound collision involves a change in direction in addition to a change in speed. Because the direction changes, there is a large velocity change even ifthe magnitude of the velocity stays the same.

Elastic collision

Collisions in which objects rebound with the same speed (and thus, the same momentum and kinetic energy) as they had prior to the collision are known as elastic collisions .

Stated differently, an elastic collision is a collision between two bodies in which the total kinetic energy of the two bodies after the collision is equal totheir total kinetic energy before the collision. Elastic collisions occur only if there is no net conversion of kinetic energy into other forms.

Facts worth remembering -- Elastic collision

An elastic collision is a collision between two bodies in which the total kinetic energy of the two bodies after the collision isequal to their total kinetic energy before the collision.

Energy conversion

A future module will explain kinetic energy and other forms of energy, such as potential energy in detail. Briefly, kinetic energy is energy possessed by amoving object simply because it is moving. For example, it hurts more to be hit by a fast moving baseball than to be hit by a slow moving baseball, simplybecause the collision with a fast moving baseball imparts more energy into your body. In other words, the kinetic energy possessed by the fast-moving baseballis converted into pain in your body.

Characteristics of an elastic collision

An elastic collision is typically characterized by a large velocity change, a large momentum change, a large impulse, and a large force.

While the case of a Super Ball bouncing on a solid concrete floor isn't a perfect elastic collision, it comes very close. The amount of kinetic energythat is converted into other forms of energy during each bounce is very low, and the ball will continue bouncing for a very long time with the height of eachbounce being almost as high as the height of the previous bounce.

Action and reaction

Two objects collide when they make contact while one or both are moving. As is the case with all interactions involving two or more moving objects, a collisionresults in a force being applied to all of the objects involved in the collision. The behavior of such collisions is governed by Newton's laws ofmotion.

Newton's third law

One paraphrased version of Newton's third law (see (External Link) ) reads:

... in every interaction, there is a pair of forces acting on the two interacting objects. The size of the force on the first object equals the sizeof the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forcesalways come in pairs - equal and opposite action-reaction force pairs.

According to Newton's third law, when two objects are involved in a collision, the two objects experience forces that are equal in magnitude andopposite in direction.

In most cases, the collision will cause one object to gain momentum and the other object to lose momentum. This, in turn, will cause one object to speed upand the other object to slow down.

Questions & Answers

How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
How can I make nanorobot?
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
how can I make nanorobot?
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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Source:  OpenStax, Accessible physics concepts for blind students. OpenStax CNX. Oct 02, 2015 Download for free at https://legacy.cnx.org/content/col11294/1.36
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