HELP cartesian form vector help

AI Thread Summary
The discussion focuses on calculating the dot product and cross product of two vectors, A and B, expressed in Cartesian form. The vectors are A = +6X - 3Y + 4Z and B = -3X + 1Y - 5Z. The user expresses urgency for help with these calculations, especially with an upcoming test. Recommendations for helpful video resources on dot and cross products are provided, emphasizing that these concepts are manageable with practice. Overall, the conversation highlights the importance of understanding vector operations for success in the upcoming test.
1barcafan
Messages
6
Reaction score
0
URGENT HELP! cartesian form vector help!

Homework Statement


given the following vectors, calculate Adotb and BxA. Express your answers in cartesian Form

A= +6X-3Y+4Z B= -3X+1Y-5Z

Homework Equations





The Attempt at a Solution


My teacher went over this in about five minutes making it seem like easiest thing in the world the last class before the test and told us its going to be on the test. I'm stuck now and don't know how to do these types of equations. it would also help if anybody has tips on how i would go about doing a problem like (0,5,6)--->(1,3,8). Test is tomorrow at 9, any help would be greatly appreciated!
 
Physics news on Phys.org


thank you! i love this guy, but i didn't know he had videos on this.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Expressing force in cartesian vector form
Replies
11
Views
5K
Solving Cartesian Vectors in Mechanics: Expressing Force F(AB) in Cartesian Form
Replies
15
Views
3K
Cartesian Vector Form - Door with 2 Chains
Replies
14
Views
3K
Representing Vectors in 3D Space
Replies
3
Views
1K
Statics: Forces in Cartesian Vector form
Replies
6
Views
4K
Help finding the angle between the force vector and line AO
Replies
4
Views
6K
Syntax Error? x and y components of E field in unit vector form
Replies
13
Views
2K
Adding Vectors: Understanding Direction and Length
Replies
5
Views
2K
Finding a Vector in Cartesian form
Replies
2
Views
2K
3-D vector into its component form
Replies
5
Views
4K

Hot Threads

Recent Insights

Back
Top