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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.

• Negative vector: Negative vector is a vector whose magnitude is the same as that of a given vector, but whose direction is opposite to that of the given vector.

• Zero vector: Zero vector is a vector whose magnitude is zero and have an arbitrary direct…

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