A110 kg tackler moving at 2.5m/s meets head on (and holds on to) an 82 kg halfback moving at 5.0m/s. what will be their mutual speed immediately after the collision? !

The situation in the problem is called an inelastic collision where kinetic energy is not conserved only momentum is conserved. We do as follows:

m1v1 + m2v2 = (m1 + m2)vf

vf = (m1v1 + m2v2) / (m1 + m2)
vf = (110)(2.5) + (82)(5.0) / (110 + 82)
vf = 3.57 m/s

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

1.state2.trash3.the earth