A proton of mass m collides with a heavy particle 4 at rest

Last updated: 6/9/2023

A proton of mass m collides with a heavy particle 4 at rest After collision proton bounces back with 9 of its initial kinetic energy Collision is perfectly elastic Find mass of heavy particle 1 5 m 2 6 m 3 3 m A small particle elastically strikes a fixed smooth cas 4 1 5 m mp