Subjects/Basic Physics/Linear momentum, impulse and collisions/Perfectly inelastic 1D collision7. Linear momentum, impulse and collisionsPerfectly inelastic 1D collisionIn 7. Linear momentum, impulse and collisionsFormulaCopy LaTeXm1v1i+m2v2i=(m1+m2)vfDetailthe objects remain joined together after the collision.Related formulasRelatedConservation of linear momentum∑pi=∑pfOpen formulaOpen in sectionRelatedElastic collisionm1v1i+m2v2i=m1v1f+m2v2fOpen formulaOpen in section