Recent content by aosome23

Okay thank you! So i guess my guess was pretty off :'(... So the reason I was asking if the sum of these angles was 90 degrees is because I wanted to express these angles in percentages. If only one axis is rotated, the sum is always 90 degrees so all I have to do is the angle*100/90 and I...

Thank you for the reply but I do not know how to do the matrix calculations and such.. Would you mind doing an example?

ADDITIONAL EXPLANATION WITH PICTURES 0(red axis)+0(green axis)+90(blue axis) =90 0+30+60 = 90 So these two are rotated only on the red axis, which means that it is only 2 dimensional. So when you introduce rotation on other axis will the sum of these angle remain 90 degrees such on the image...

Sorry for the confusion... Long story short, I wanted to know if the same rule for 2 perpendicular lines applies for 3 perpendicular lines. For 2 perpendicular lines(x and y): angle between the first green line and the black line + angle between the second green line and the black line = 90...

Sorry for the confusing tittle but I could not explain it better. Here is what I am trying to ask: When you have 2 axis(x and y) such as the image below, the sum of the two angles, a and b will always be equal to 90 degrees. a + b = 90degrees However when you add a 3rd axis(x, y and z, making...

Okay, so this is quite hard to explain in words so I will use pictures. Suppose you have a Square with the length of W You also know the distance from the pink surface to the center of the square is X. The rotation of the square is theta. As shown in the picture above... So the problem is: Is...

Homework Statement Find the force to stop a 5kg ball at 20m/s instantly. Dont take in account resistance. Homework Equations kinetic energy = 0.5*mass*velocity^2 Energy = force * distance force = energy / distance The Attempt at a Solution 0.5 * 5kg * 20m/s^2 = 1000J 1000J / 0 =...

But if the force applied to the cube is 50000N wouldn't the cube be flung up because the mass is really small? So since force is m * a, if a cube is 1kg, that means that the acceleration will be 50000m/s^2. Since that is way larger than gravity which is 9.8m/s^2, wouldn't it make the cube fly up...

Correct me if I'm wrong but to find drag for water you have to use this equation: 0.5 * velocity^2 * water density which is 1000kg/m^3 * Drag Coefficient * Cross Sectional Area Velocity is supposed to be in m/s right? not km/h? Okay so for example if there was an imaginary planet with no...

Thank You! I did not know that the dot product is cos! :D

I'm trying to make a game and for some reason I thought that the dot product changed consistently with the angle.

So, is there anyway to make the dot product change linearly? What I mean by this is when the angle is 45 degrees, I want it to be 0.5 instead of 0.7071 as you can see in this image: Instead I want 45 degrees to be 0.5, 60 degrees to be 0.33 and 30 degrees to be 0.66. Same would apply for...

Hello, This is a quick question that I want to know, When an object falls, does the vertical falling speed stay the same with any horizontal speed? To be more clear about this question, this is an example: There is a bullet. 1. The bullet falls from 10 meters above the ground without any...

Okay, and thank you. However, What do you mean by your last sentence, "That's because in case X, the part under water is moving slower than top, and that's a big deal."

So if it is a cube instead of a sphere, will the resistance force be the same as the force at first contact if the velocity is exactly the same for the 2 objects?