What are vectors?

Vectors can seem complicated at first but they are simple once you understand that you need two pieces of information in order to define a vector. A vector is composed of direction and magnitude. You can think of them as arrows, so the direction is where the arrow is pointing and the magnitude is how long that arrow is. examples: a) ---> b) <-- So a and b are two vectors where the first one is pointing to the right and has a magnitude of three (it is formed of three small lines) and the vector b is pointing to the left and has a magnitude of two. So with the use of arrows we can define any vector, in 2D and 3D. Now vectors are more used than you expect, there are many vectorial values used in physics such as movement or displacement, eg. to describe where you have moved, direction and distance, or velocity, where you are running and at what speed.

EC
Answered by Esperanza C. Physics tutor

6758 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?


Two pellets are fired simultaneously from the horizontal, one is fired vertically at 100m/s and the other is fired at 200m/s at an angle theta from the horizontal. Calculate the angle of the second pellet if they both land at the same time.


Why is an object that moves in a circular path accelerating when it has constant speed?


Explain why for heavy nuclei there is imbalance in the number of protons and neutrons. Give reference to the range and particle type of the forces that influence this imbalance.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences