   Scalars and Vectors
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Date Added: July 17, 2015 Lights Out New Window

Lecture Description

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The objectives of this video are to review the scalar & vector concept and to do distinguish between scalars and vectors. First of all, the video gives definition of scalar & vector where scalar represents quantities that can be fully described by a magnitude (a numerical value) alone & vector represents quantities that require both the magnitude and direction to get described. Effectively what it means is that a scalar is simply a number or unit & a vector is something having magnitude along with the direction acting towards. Next, the video illustrates scalar & vector vividly by a schematic figure.

Moving on, the video introduces with few examples of scalars & vectors demonstrating the grounds for being those to be scalars or vectors. Doing so, the video highlights the difference between scalar and vector explaining all the facts & figures in greater details. Later, the video gives an overview on how to do adding operation of scalar & vector and finally refers to watch next video to get in touch with the parallelogram law and triangle method used to do operations on vectors.

Course Description

Mechanics, the study of forces and physical bodies, underpins a very large proportion of all forms of engineering. A thorough understanding of mechanics is essential to any successful engineer. This course helps develop an understanding of the nature of forces with consideration for how they may be simplified in an engineering context. The conditions of equilibrium are then used to solve a number of problems in 2D and 3D before moving on to a broad range of topics including centroids, distributed loads, friction and virtual work. The course will also provide an introduction to dynamics, with a particular focus on the effects that forces have upon motion.