Explanation of Common forces In Mechanics In mechanics, we encounter several kinds of forces.The gravitational force is, of course, pervasive. Every object on the earth experiences the force of gra
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Friction Let us return to the example of a body of mass m at rest on a horizontal table. The force of gravity (mg) is cancelled by the normal reaction force (N) of the table. Now suppose
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Friction A body like a ring or a sphere rolling without slipping over a horizontal plane will suffer no friction, in principle. At every instant, there is just one point of contact betwee
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