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How many variables are required to define the position of a body in space?(a) 3(b) 2(c) 1(d) 0The question was posed to me in exam.This intriguing question originated from Straight Line Motion topic in portion Motion in a Straight Line of Physics – Class 11

Answer»

The correct option is (a) 3

To elaborate: In SPACE we require a minimum of 3 variables to DESCRIBE the position of a body, NAMELY X, y, and z (in Cartesian system). There are also systems other than Cartesian Coordinate system to do this LIKE Cylindrical system, Spherical or Radial system.



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