Find magnitude and direction of these vectors

AI Thread Summary
To find the magnitude and direction of vector A-B, where both vectors are 3m, the result depends on their orientation. If vectors A and B are aligned, A-B equals zero. However, if they are at right angles, the magnitude of A-B would be 4.2m. The discussion emphasizes that vectors must have both magnitude and direction for meaningful calculations. Understanding the angle between vectors is crucial for accurate results.
chocolatelover
Messages
238
Reaction score
0

Homework Statement



Find the magnitude and direction for the vector A-B. Vector A=3m, Vector B=3m

Homework Equations





The Attempt at a Solution



Wouldn't it just be 0?
3-3=0

Thank you very much
 
Physics news on Phys.org
It depends on the angle between them.
 
Thank you very much

If the only vectors are A=3.00m and B=3.00, vector -b would be -3.00, right? So wouldn't the distance be 0m? Or is this totally wrong?

Thank you
 
A vector has magnitude and direction, to talk about a vector of just 3m is meaningless.
If they were in the same line then A - B would be zero.
If they were at right angles the distance would be 4.2m
 
Thank you very much

Regards
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged 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

Vector is a function of its position or not?
Replies
16
Views
1K
Electric field vector equation: Finding the neutral point for two charges
Replies
35
Views
2K
Calculate electric force using Coulomb's law (vector components are the struggle)
Replies
3
Views
1K
Vector Subtract Given Magnitude
Replies
6
Views
2K
What is the displacement and average velocity of a classic car in a road rally?
Replies
1
Views
2K
Finding the magnitude (length) and direction (angle) of a vector
Replies
2
Views
1K
Finding the magnitude and direction of a boat's motion
Replies
7
Views
2K
Can A Vector Have Components Of Say Y or Z in the X-Hat Direction?
Replies
8
Views
849
Finding x and y components of a magnitude
Replies
1
Views
2K
Suvat vector versus the scalar form
Replies
44
Views
4K

Hot Threads

Recent Insights

Back
Top