Question

Define a vector. Give examples

Answer 1

Vector or Vector quantity :-

Any quantity which needs to be described by it's magnitude as well as directions is referred to as a vector quantity.

What we understand by magnitude & Directions  ? Well .

⇒ The magnitude of vectors refers to the size of the quantity, like length or strength .
⇒ The direction of a vector, refers that where the vector is pointing  or where it is going to directed , such as up , down ,left , right , east , west , north ,south


Representation of  vectors :- Refers to the attachment 

(i) When we draw the vector , The length of the vector shows the magnitude , It's heads shows the directions.

(ii) In one dimension it represented by + and - sign , the positive signs pointing the up or right , and negative point pointing left or down.
While In 2- D, For magnitude  it will be represented by number and angle for directions.

Examples of Vectors :- These are the examples of vectors which have magnitude as well as directions 


→Displacement←
→Magnetic field←
→Magnetic flux ←
→Direction←
→Velocity←
→Weight ←
→Torque←
→Electric field←
→Acceleration←
→Momentum←
→Force ←
→Thrust ←
→Current Density←



Hope it Helps :-)

Answer 2

Explanation:

A vector represents a quantity that has both magnitude (distance) and direction. For example, when you travel 16 kilometers south, your journey may be represented as a vector quantity. ... Force and velocity are some examples of vector quantities. Scalar quantities only have magnitude, and are used with vector quantities.