Block A has a weight of 10 lb., and block B has a weight of 30 lb. Determine the speed of block B after it moves down a distance of 2 ft, starting from rest. The coefficient of kinetic friction between block A and the horizontal plane is µk = 0.2. Neglect the mass of the cord and pulleys.

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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.