Two packages at UPS start sliding down the 20-degree ramp shown in the figure. Package A has a mass of 4.00 kg and a coefficient of kinetic friction of 0.180. Package B has a mass of 11.5 kg and a coefficient of kinetic friction of 0.170. How long does it take package A to reach the bottom?

It would take around 0.6 seconds to reach the ground/bottom because it would go at a fast speed.

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.