Exploring Inelastic Collision: Student Seeks Help

In summary, the question asks about the explanation of an inelastic collision, specifically when two bodies collide and stick together. The solution involves analyzing the collision in the frame of reference of the centre of mass of the two objects and considering the kinetic energy before and after the collision."
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omkhan95
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Hi everyone,

I am a student of A'Levels and I am having a problem with a Question regarding inelastic collision the question is as follows:

Whenever two bodies collide and they stick together the collision is essentially inelastic. Explain?

Can anybody help me out with this this is a challenge from my physics teacher...I tried it but no good so please help me out...:) following is my answer which my teacher said is not correct...
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Analyze the collision in the frame of reference of the centre of mass of the two colliding objects. What is the kinetic energy before the collision? What is it after?

AM
 

FAQ: Exploring Inelastic Collision: Student Seeks Help

What is an inelastic collision?

An inelastic collision is a type of collision where the total kinetic energy of the system is not conserved. This means that some of the energy is lost in the form of heat, sound, or deformation of the objects involved in the collision.

How does an inelastic collision differ from an elastic collision?

In an elastic collision, the total kinetic energy of the system is conserved, meaning that no energy is lost. This type of collision is often described as "perfect" or "ideal" because the objects involved do not experience any deformation or loss of energy. In an inelastic collision, however, some of the energy is lost, and the objects may deform or stick together.

What are some examples of inelastic collisions?

Some common examples of inelastic collisions include a car crashing into a wall, a ball hitting the ground, or two objects colliding and sticking together, such as two balls of clay.

How do you calculate the final velocities in an inelastic collision?

In an inelastic collision, the final velocities of the objects can be determined using the conservation of momentum equation: m1v1 + m2v2 = (m1 + m2)v, where m1 and m2 are the masses of the objects, v1 and v2 are their initial velocities, and v is their final velocity. This equation assumes that the objects stick together after the collision. If the objects do not stick together, the final velocities can be calculated using the conservation of kinetic energy equation: 1/2m1v1^2 + 1/2m2v2^2 = 1/2(m1 + m2)v^2.

How can studying inelastic collisions be useful in the real world?

Understanding inelastic collisions can be useful in various real-world situations, such as car accidents or sports collisions. It can also be applied in engineering, such as designing safer car structures or creating protective gear for athletes. Additionally, the principles of inelastic collisions are essential in fields such as physics, chemistry, and materials science.

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