Engineering Mechanics 2 min read
Linear Motion
INTRODUCTION A body is said to be at rest, if it occupies the same position with respect to its surroundings…
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Virtual Work
INTRODUCTION It has been observed that whenever a force acts on a body, and the body undergoes some displacement, some…
Engineering Mechanics 2 min read
Equilibrium of Strings
INTRODUCTION A string (or rope), in its theoretical sense, is absolutely flexible, light (i.e. its weight is neglected) and inextensible. It…
Engineering Mechanics 6 min read
Analysis of Perfect Frames (Graphical Method)
INTRODUCTION In the previous chapter, we have discussed the analytical methods for determining the forces in perfect frames. We have…
Engineering Mechanics 6 min read
Analysis of Perfect Frames
INTRODUCTION A frame may be defined as a structure, made up of several bars, riveted or welded together. These are…
Engineering Mechanics 5 min read
Support Reactions
INTRODUCTION In our day-to-day work, we see that whenever we apply a force on a body, it exerts a *reaction, e.g., when…
Engineering Mechanics 3 min read
Simple Lifting Machines
INTRODUCTION In the last chapter, we have discussed the principles of lifting machines. Now in this chapter, we shall discuss…
Engineering Mechanics 3 min read
Principles of Lifting Machines
INTRODUCTION In olden times, thousands of slaves had to be arranged, whenever a heavy load had to be lifted or…
Engineering Mechanics 2 min read
Applications of Friction
INTRODUCTION In the last chapter, we have discussed the principles of friction of various types. Though these principles have a…
Engineering Mechanics 5 min read
Principles of Friction
INTRODUCTION It has been established since long that all surfaces of the bodies are never perfectly smooth. It has been…
Engineering Mechanics 2 min read
Moment of Inertia
INTRODUCTION We have already discussed in Art. 3.2 that the moment of a force (P) about a point, is the…
Engineering Mechanics 3 min read
Centre of Gravity
INTRODUCTION It has been established, since long, that every particle of a body is attracted by the earth towards its…