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- https://phys.libretexts.org/Courses/Tuskegee_University/Algebra_Based_Physics_I/07%3A_Linear_Momentum_and_Collisions/7.07%3A_Collisions_of_Point_Masses_in_Two_DimensionsOne complication arising in two-dimensional collisions is that the objects might rotate before or after their collision. For example, if two ice skaters hook arms as they pass by one another, they wil...One complication arising in two-dimensional collisions is that the objects might rotate before or after their collision. For example, if two ice skaters hook arms as they pass by one another, they will spin in circles. We will not consider such rotation until later, and so for now we arrange things so that no rotation is possible. To avoid rotation, we consider only the scattering of point masses—that is, structureless particles that cannot rotate or spin.
- https://phys.libretexts.org/Bookshelves/University_Physics/Radically_Modern_Introductory_Physics_Text_I_(Raymond)/10%3A_Dynamics_of_Multiple_Particles/10.04%3A_CollisionsAll we have to do is to transform the velocities into a reference frame moving with the initial velocity of particle 2, as illustrated in Figure \(\PageIndex{3}\):. We do this by relativistically addi...All we have to do is to transform the velocities into a reference frame moving with the initial velocity of particle 2, as illustrated in Figure \(\PageIndex{3}\):. We do this by relativistically adding \(U=-u_{2}\) to each velocity. (Note that the velocity U of the moving frame is positive since \(\mathrm{u}_{2}\) is negative.) Using the relativistic velocity translation formula, we find that
- https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/08%3A_Linear_Momentum_and_Collisions/8.06%3A_Collisions_of_Point_Masses_in_Two_DimensionsOne complication arising in two-dimensional collisions is that the objects might rotate before or after their collision. For example, if two ice skaters hook arms as they pass by one another, they wil...One complication arising in two-dimensional collisions is that the objects might rotate before or after their collision. For example, if two ice skaters hook arms as they pass by one another, they will spin in circles. We will not consider such rotation until later, and so for now we arrange things so that no rotation is possible. To avoid rotation, we consider only the scattering of point masses—that is, structureless particles that cannot rotate or spin.
