What is the magnitude?

Question

how do you find the magnitude? for ex. if A is 3 m north and B is 3 m northeast, and the problem is you have to add A+B, what would be the magnitude? wouldn't it be 6 m?

i know it's a vector problem but i don't know how to do it

Answer 1

No. This is a vector addition.
You have 3m @ 90 deg +
3 m @ 45 deg
3m@45 deg = 2.121 m@90 = 2.121m@0, so your sum is 5.121m@90 + 2.121m@0
sum = (5.121^2+2.121^2)^0.5 @ arctan(5.121/2.121)

Answer 2

vector is a quantity characterized by a magnitude
(in mathematics a number, in physics a number times a unit) and a direction, often represented graphically by an arrow. Examples are "moving north at 90 km/h" or "pulling towards the center of Earth with a force of 70 newtons".

Addition method is sometimes called the parallelogram rule because a and b form the sides of a parallelogram and a + b is one of the diagonals. If a and b are bound vectors, then the addition is only defined if a and b have the same base point, which will then also be the base point of a + b. One can check geometrically that a + b = b + a and (a + b) + c = a + (b + c).

other definations:

Magnitude may refer to:
Magnitude (mathematics), a measure of the size of a mathematical object

In astronomy:
A logarithmic measure of the brightness of an astronomical object:
Apparent magnitude
Absolute magnitude
Magnitude of an eclipse

In seismology:
Either of two measures of earthquake strength:
Richter magnitude scale (including the surface-wave Ms and body wave Mb magnitudes)
Moment magnitude scale

Answer 3

Hi, Stinker poof. The magnitude would be the sum of the squares. Tryt it out if you don't believe me. the answer would then be square root of 18. Try it. work on it or something.

Answer 4

This is a vector problem. I hope that this gives you a hint.