- #1
lionely
- 576
- 2
Homework Statement
I'm confused ,here's ... my attempt..
all I know so far is the
the k component would be 5...
I have no idea what to do with the i and j
Last edited:
lionely said:all I know so far is the
the k component would be 5...
I have no idea what to do with the i and j
tiny-tim said:hi lionely!
drop perpendiculars DP and EQ onto the base …
where are P and Q in relation to ABCD ?
lionely said:Hmm is DE is assumed to be at the mid point then.. for the j component that would be 4j
but the i? ... umm is it like the base below DE is 8 because DE is 6cm and OA is 14? so 14-6?
lionely said:when I dropped the perpendiculars they ended up being at the midpoints of the widths of the base
A 3d vector is a mathematical representation of a point in 3-dimensional space, consisting of three components: x, y, and z. It is commonly used in computer graphics and physics to describe the position, direction, and magnitude of an object.
The magnitude of a 3d vector can be found using the Pythagorean theorem. The magnitude is equal to the square root of the sum of the squares of the three components (x, y, and z).
A 3d vector has three components (x, y, and z) while a 2d vector has only two components (x and y). This means that a 3d vector can represent a point in 3-dimensional space, while a 2d vector can only represent a point in 2-dimensional space.
To add two 3d vectors, you simply add the corresponding components (x, y, and z) of each vector. For example, to add vector A = (2, 3, 4) and vector B = (5, 6, 7), the resulting vector would be C = (2+5, 3+6, 4+7) = (7, 9, 11).
3d vectors have many practical applications, including computer graphics, video game development, 3d modeling, physics simulations, and navigation systems. They are also used in engineering, architecture, and robotics to calculate distances, angles, and forces in 3-dimensional space.