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Common elastic collision problems include determining the final velocities of two objects after colliding, calculating the kinetic energy before and after the collision, and finding the angle of deflection after a collision. Solutions to these problems involve applying the principles of conservation of momentum and conservation of kinetic energy, as well as using equations to solve for the unknown variables.

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What are some common physics elastic collision problems encountered in introductory physics courses?

Some common physics elastic collision problems encountered in introductory physics courses include calculating the final velocities of two objects after a collision, determining the kinetic energy before and after the collision, and finding the angle at which the objects move after colliding. These problems often involve applying the principles of conservation of momentum and conservation of kinetic energy.


What are some examples of elastic collisions?

A common example of an elastic collision is when billiard balls collide on a pool table. Another example is when two gas particles collide in a vacuum, where both kinetic energy and momentum are conserved. Additionally, two magnets bouncing off each other with no loss of kinetic energy is also an example of an elastic collision.


Need an explanation why kinetic energy is always conserved during elastic collision what is meant by conserved?

In this context "conserved" means the total kinetic energy of all the objects is the same after the collision as before the collision. Note, the TOTAL is the same but the individual kinetic energies of each object may be different before and after. When two or more objects are about to collide they have a certain total kinetic energy. It is common that during the collision some of the kinetic energy is transformed into heat. So after the collision the total kinetic energy is less then before the collision. This is a non-elastic collision. There are some collisions, however, in which none of the kinetic energy is changed to heat. These are called ELASTIC collisions. So the total kinetic energy doesn't change, or is "conserved". There is another possible non-elastic collision. If during the collision there is an explosion, then its possible for the objects to have a larger total kinetic energy after the collision as they aquire some of the explosive energy. Finally note, that in all collisions the TOTAL vector momentum is the same just before and just after the collision. So in a collision momentum is always conserved.


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Common projectile motion problems include determining the maximum height reached by an object, the time of flight, the range of the projectile, and the velocity at a certain point. Solutions to these problems involve breaking down the motion into horizontal and vertical components, using kinematic equations to calculate the necessary parameters, and applying the principles of projectile motion such as the independence of horizontal and vertical motion.


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Related Questions

What are some common physics elastic collision problems encountered in introductory physics courses?

Some common physics elastic collision problems encountered in introductory physics courses include calculating the final velocities of two objects after a collision, determining the kinetic energy before and after the collision, and finding the angle at which the objects move after colliding. These problems often involve applying the principles of conservation of momentum and conservation of kinetic energy.


What are some examples of elastic collisions?

A common example of an elastic collision is when billiard balls collide on a pool table. Another example is when two gas particles collide in a vacuum, where both kinetic energy and momentum are conserved. Additionally, two magnets bouncing off each other with no loss of kinetic energy is also an example of an elastic collision.


What is collision?

A collision is an isolated event in which two or more moving bodies (colliding bodies) exert forces on each other for a relatively short time.Although the most common colloquial use of the word "collision" refers to accidents in which two or more objects collide, the scientific use of the word "collision" implies nothing about the magnitude of the forces.Types of collisionsA perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision. In reality, any macroscopic collision between objects will convert some kinetic energy to internal energy and other forms of energy, so no large scale impacts are perfectly elastic. However, some problems are sufficiently close to perfectly elastic that they can be approximated as such. An inelastic collision is one in which part of the kinetic energy is changed to some other form of energy in the collision. Momentum is conserved in inelastic collisions (as it is for elastic collisions), but one cannot track the kinetic energy through the collision since some of it is converted to other forms of energy.Collisions in ideal gases approach perfectly elastic collisions, as do scattering interactions of sub-atomic particles which are deflected by the electromagnetic force. Some large-scale interactions like the slingshot type gravitational interactions between satellites and planets are perfectly elastic.Collisions between hard spheres may be nearly elastic, so it is useful to calculate the limiting case of an elastic collision. The assumption of conservation of momentum as well as the conservation of kinetic energy makes possible the calculation of the final velocities in two-body collisions.


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For a list of common water heater problems and solutions go to homerepair.about.com.


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Need an explanation why kinetic energy is always conserved during elastic collision what is meant by conserved?

In this context "conserved" means the total kinetic energy of all the objects is the same after the collision as before the collision. Note, the TOTAL is the same but the individual kinetic energies of each object may be different before and after. When two or more objects are about to collide they have a certain total kinetic energy. It is common that during the collision some of the kinetic energy is transformed into heat. So after the collision the total kinetic energy is less then before the collision. This is a non-elastic collision. There are some collisions, however, in which none of the kinetic energy is changed to heat. These are called ELASTIC collisions. So the total kinetic energy doesn't change, or is "conserved". There is another possible non-elastic collision. If during the collision there is an explosion, then its possible for the objects to have a larger total kinetic energy after the collision as they aquire some of the explosive energy. Finally note, that in all collisions the TOTAL vector momentum is the same just before and just after the collision. So in a collision momentum is always conserved.


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