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Basic Terminologies of Engineering Mechanics

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Just some of the basic terminologies which are used in mechanics

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Basic Terminologies of Engineering Mechanics

  1. 1. BASIC TERMINOLOGY OF ENGINEERING MECHANICS
  2. 2. MECHANICS Mechanics is one of the oldest physical science and is a branch that is concerned with the state of rest or motion of bodies subjected to the action of forces ENGINEERING MECHANICS It is a branch of Applied Science, which deals with the laws and principles of mechanics, along with their applications to engineering problems
  3. 3. MASS • Quantity of matter possessed by a body • Its value wont change TIME • Measure of successive events • Successive event selected is the rotation of earth on its own axis SPACE • Geometric region in which study of body is done • Determined through a pre determined point
  4. 4. • Distance measured along the longest dimension of an object LENGTH • A displacement is scalar that is the shortest distance from the initial to the final position of the body DISPLACEMENT • The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time VELOCITY
  5. 5. ACCELERATION • Rate of change of velocity MOMENTUM • The quantity of motion of a moving body, measured as a product of its mass and velocity RIGID BODY • a rigid body is a solid body in which deformation is zero or so small it can be neglected
  6. 6. DISTANCE • Distance is a numerical description of how far apart objects are PARTICLE • A body with mass but with dimensions that can be neglected CONTINUUM • Body consisting of several matters
  7. 7. FORCE Push or Pull Ability to do work Interaction which when unopposed changes motion of object
  8. 8. •It states that everybody continues in its state of rest or of uniform motion in a straight line unless it is compelled by an external agency acting on it.
  9. 9. • It states that the rate of change of momentum of a body is directly proportional to the impressed force and it takes place in the direction of the force acting on it.
  10. 10. It states that for every action there is an equal and opposite reaction.
  11. 11. STRESS Internal forces transmitted through the body STRAIN Measure of deformation of material

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