<u>Answer:</u>
In an <u>inelastic collision</u> the kinetic energy is not conserved, but <u>the total momentum of the system is conserved</u>.
In other words; the Initial momentum is equal to the Final Momentum
:
Then:
<h2>
This means that after the collision the kinetic energy is transformed (dissipated) into another type of energy (caloric energy, for example); and there may be deformation in the blocks.
Therefore, the sentence that best describes this situation is:
<h2>The total momentum is zero. </h2>