Shown above is the world's largest single-dish radio telescope, located in Arecibo, Puerto Rico. The 305-m-diameter spherical reflecting dish covers an area of approximately 20 acres. Suspended above the reflector is a 900-ton platform below which is the 328-ft-long azimuth arm. In this chapter, we will learn that by considering the platform as a particle in equilibrium, it will be possible to determine the tensions in the supporting cables.
In this chapter, you will learn:
2.1
Introduction
Forces in a Plane
2.2
Force on a Particle. Resultant of Two Forces
2.3
Vectors
2.4
Addition of Vectors
2.5
Resultant of Several Concurrent Forces
2.6
Resolution of a Force into Components
2.7
Rectangular Components of a Force. Unit Vectors
2.8
Addition of Forces by Summing x and y Components
2.9
Equilibrium of a Particle
2.10
Newton's First Law of Motion
2.11
Problems Involving the Equilibrium of a Particle. Free-Body Diagrams
Forces in Space
2.12
Rectangular Components of a Force in Space
2.13
Force Defined by Its Magnitude and Two Points on Its Line of Action
