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Projectile Motion

  • An object is at rest when the position of the object does not change with time and with respect to its surroundings. 
  • An object is in motion when the position of the object changes with time and with respect to its surroundings. 
  • Rest and motion are relative.
  • If the distance covered by an object is much greater than its size during its motion, then the object is considered as point mass object.
  • Distance or path length — Total length of the path covered by a body (scalar quantity)
  • Displacement — Shortest distance between initial and final positions measured along a particular direction

 

  • Uniform motion (object moving with a constant velocity):

             
 

 
  • Stationary object (object at rest):
           

 

  • Average velocity (s…

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