Introduction to Work |
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Video Lecture 43 of 83
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### Lecture Description

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The objectives of this video are to give an introduction to work through a comprehensive workout on calculating work done on an object. Fundamentally, a force is said to do work if, when acting on an object causes a displacement from the point of application to the direction of the force. Very first, the video presents an exemplary problem asking to calculate the work done on the given block due to applied force. The mass of the block is given as 5 Kg which lies on a slope of 30 degree. It has also given that a force of 200 N is exerted on the block which pushes it 1 m down the slope from rest.

Moving on, the video illustrates the given schematic diagram of the exemplary problem and shows how to draw the free body diagram demonstrating all the facts & figures in greater details. Next, the video explains what to consider and what to ignore to resolve force component to find out the work done due to the situation of applied forces. It is highly recommended to do practices to have better understanding on the content overviewed in this lesson.

### 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.