9/17/2023 0 Comments Null vector physics definition![]() ![]() The vector whose magnitude is same as that of a (vector) but the direction is opposite to that of a ( vector ) is referred to as the negative of a ( vector ) and is written as – a ( vector ). It can be represented by O and is a Null Vector. Zero vector is a vector with zero magnitudes and an arbitrary direction is a zero vector. Get Physics Important Questions here Zero Vectors Vectors A and B are equal if | A | = | B | as well as their directions, are same. The unit vector in the direction of \( \vec \) respectively. ![]() You can download Motion in a Plane Cheat Sheet by clicking on the download button belowĪ unit vector is that vector which is a vector of unit magnitude and points in a particular direction. Addition and Subtraction of Vectors – Graphical Method.Resolution of Vectors and Vector Addition.These change if either the magnitude or direction change or both change.īrowse more Topics under Motion In A Plane.They do not obey the ordinary laws of Algebra.They possess both magnitudes as well as direction.The characteristics of vectors are as followed – Quantity symbol in bold or an arrow sign above For example, displacement, force, torque, momentum, acceleration, velocity, etc.Ĭomparison between Scalars and Vectors CriteriaĪ scalar is a quantity with magnitude only.Ī vector is a quantity with the magnitude as well as direction.Ī number (magnitude), direction and a unit. ![]() Vector Quantities: Vector quantities refer to the physical quantities characterized by the presence of both magnitude as well as direction.For example, length, speed, work, mass, density, etc. Scalar Quantities: The physical quantities which are specified with the magnitude or size alone are scalar quantities. ![]()
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