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Motion in a Plane

  • Scalar quantities: These are the physical quantities that are not affected by the change in the coordinate systems used to define them. They do not have any direction. Example: Speed, charge, temperature, etc.

  • Vector quantities: These are physical quantities that have both direction and magnitude. They change with change in the coordinate systems used to define them. Example: Displacement, velocity, etc.     

  • Position vector: Position vector of a point in a coordinate system is the straight line that joins the origin and the point.
  • Displacement Vector: It is the straight line that joins the initial and the final position.

  • Equality of Vectors: Two vectors are said to be equal only if they have the same magnitude and the same direction.

  • Nega‚Ķ

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