If the mass and post-collision speed of block 1 is known, the momentum of the block 2 can be determined.
<h3>What is momentum?</h3>The momentum of an object in motion is the product of mass and speed of the object.
P = mv
<h3>Conservation of linear momentum</h3>The principle of conservation of linear momentum states that, the sum of the initial momentum must be equal to the sum of the final momentum.
Thus, if the mass and post-collision speed of block 1 is known, the momentum of the block 2 can be determined.
Learn more about conservation of linear momentum here: brainly.com/question/7538238