Are These Statements About Vectors True or False?

  • Thread starter Thread starter mullets1200
  • Start date Start date
  • Tags Tags
    Vector
AI Thread Summary
The discussion centers on two statements regarding vectors. The first statement asserts that the components of a vector remain unchanged regardless of the coordinate system, which is confirmed as true. The second statement claims that the magnitude of the displacement vector from point A to point B can be greater than the actual distance, which is deemed false. The consensus is that the displacement vector's magnitude cannot exceed the distance between the two points. Understanding these concepts is crucial for accurate vector analysis in physics and mathematics.
mullets1200
Messages
14
Reaction score
0
1. The components of a vector will be the same no matter what coordinate system is used to express that vector. True or False

2. The magnitude of the displacement vector from A to B can never be less than the distance from A to B, but it can be greater than that distance. True or false

My thoughts:
For question 1 i believe the answer is true just because I don't think the coordinate system changes the vectors. I just want to be sure though by asking other people.

Then for question 2 my gut feeling is false but I really am not to sure about it.
 
Physics news on Phys.org
I feel like it is false because I think the displacement vector is the difference between two vectors and it would be impossible to have a greater magnitude than the actual distance. Again though I just want to make sure.Answer:1. True2. False
 
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...
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...
Back
Top