MAHE Manipal B.Sc Nursing 2025
ApplyAccorded Institution of Eminence by MoE, Govt. of India | NAAC A++ Grade | Ranked #4 India by NIRF 2024
21 Questions around this concept.
If two vectors have the same starting point then vectors called as
Which of the following statements is false regarding the vectors?
When can the sum of two vectors be said to be greater
Scalars
Physical quantities which can be described completely by its magnitude only but no particular direction.
example- Distance, speed, work, etc.
Tips for scalars-
Scalars are always positive.
Represented by alphabet only A, B, C.
These physical quantities follow normal algebraic rules of addition.
Vectors
Physical quantities can be described by their magnitude and direction.
Physical quantities like Displacement, force, velocity,y etc. are vectors.
Tips for vectors-
Vectors can be positive, negative, and zero.
Represented bythe alphabet having an arrow on their head.
These physical quantities follows law of vector addition.
Types of vectors
Equal vectors-
Two vectors are said to be equal if they have equal magnitude and the same directions.
The angle between these two vectors
Negative vectors-
Two vectors are said to be negative with respect to each other if they have equal magnitude but opposite directions.
Angle between negative vectors is equals to 180 . i.e
Collinear vectors-
Two vectors are said to be collinear if they have common line of action.
a. If two vectors are collinear and parallel then the angle between them is zero.
b. If two vector are collinear and anti - parallel then the angle between them is 1800.
So,the Angle between collinear vectors A & B is either zero or 1800.
i.e;
Co-initial vectors-
Two vectors are said to be Co-initial vectors if they have the same initial point.
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