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There are two particles so you must consider the KE of both. (Note that in the figure both particles end up with zero final velocity.)asilvester635 said:I'm not sure how they got the extra (1/2)mv^2?
The process for finding the initial velocity of two elementary particles involves first determining the particles' masses and charges. Then, using equations from classical mechanics and particle physics, the initial velocities can be calculated based on the particles' interactions and any external forces acting on them.
The initial velocity of two elementary particles can be affected by several factors, including their masses, charges, and the strength of their interactions. External forces, such as electric or magnetic fields, can also impact the particles' velocities.
The accuracy of calculations for the initial velocity of two elementary particles depends on the precision of the measurements used for the particles' masses, charges, and interactions. Small measurement errors can lead to significant differences in calculated velocities, so it is important to use precise and accurate data.
In most cases, the initial velocity of two elementary particles cannot be measured directly. Instead, it is calculated using theoretical equations and data from experiments. However, in some cases, specialized equipment such as particle accelerators can be used to measure the velocities of particles directly.
Knowing the initial velocity of two elementary particles can have many applications in fields such as particle physics, astrophysics, and engineering. This information can be used to understand the behavior and interactions of particles, study the properties of matter, and design and improve technological systems that utilize particle accelerators or other high-energy particles.