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QUESTION
A proton of mass m_p with initial velocity v_0 collides with a lithium-7 nucleus, mass 7m_p, that is initially at rest.
A proton of mass m_p with initial velocity v_0 collides with a lithium-7 nucleus, mass 7m_p, that is initially at rest. The proton leaves the point of impact at angle 50° with its original line of motion. Find the final velocities of each particle if:
a) the collision is perfectly elastic.
b) the collision is inelastic and that Q is equal to one-third of the initial kinetic energy of the proton.
