Choose the incorrect statement

Two bodies of masses m₁ and m₂ moving along the same direction with

$\text{ Velocities }{\mathrm{u}}_{1,}{\mathrm{u}}_2\text{ respectively. If }{\mathrm{u}}_1>{\mathrm{u}}_2\text{ so that the two bodies may collide }$

$\text{ Inelastically. Let }{v}_1,v_2\text{ be the final velocities of two bodies in the same direction. }$

Since collision is inelastic, some mechanical energy is of colliding bodies is lost in the form of deformation energy. Hence law of conservation of KE is not valid .Only law of conservation of momentum is valid 

${\mathrm{m}}_1{\mathrm{u}}_1+{\mathrm{m}}_2{\mathrm{u}}_2={\mathrm{m}}_1{\mathrm{v}}_1+{\mathrm{m}}_2{\mathrm{v}}_2$