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BC and FE
2. ### Vector Labelling

It has to be in the same direction. I will use EB
3. ### Solving for Tension: A chandelier is suspended by two chains

Let T1 - 5 Let T2 - 8 T1 = mg
4. ### Solving for Tension: A chandelier is suspended by two chains

Well, the question is asking for the tension in the 5m rope. So, T=(45)(9.8). That would work for both the 5m and 8m rope. How do I change it such that the equation applies to the 5m rope?
5. ### Solving for Tension: A chandelier is suspended by two chains

An object with an acceleration of 0 has no net force on it but there may be forces acting on it that cancel out. Is T = mg my formula then?
6. ### Solving for Tension: A chandelier is suspended by two chains

No. I should substitute acceleration with 0, correct?
7. ### Solving for Tension: A chandelier is suspended by two chains

I've begun by drawing out the diagram. Since they want the tension in the 5m rope, I've broken it down into two vectors. I want to use T = mg + ma, but I don't think that's right because I don't have acceleration. Is there another formula I can use instead? Thanks!
8. ### Vectors Question using Calculus -- Swimmer crossing a River

H He's swimming to the oppiste side. Relative meaning in the direction of. I drew another diagram, I'm not sure if I'm on the right track..
9. ### Vectors Question using Calculus -- Swimmer crossing a River

A lot of my problems have right-angled triangles with them.. Is it not supposed to be a right angle?
10. ### Vector Labelling

So then collinear to AD would either be BE or EB
11. ### Vectors Question using Calculus -- Swimmer crossing a River

Is this better?

13. ### Vector Labelling

So then the magnitude of BD is AE. What could possible be the collinear vector to AD??

15. ### Vectors Question using Calculus -- Swimmer crossing a River

Since he can't swim directly across, he would have to swim in two different directions.

17. ### Vectors Question using Calculus -- Swimmer crossing a River

If I'm drawing a triangle, the hypotenuse would be B/W, right? I think that the adjacent side would be Bob and the opposite side would be the water.
18. ### Vectors Question using Calculus -- Swimmer crossing a River

Yes. He can't be going north and the question doesn't say anything about him moving against the current.
19. ### Vectors Question using Calculus -- Swimmer crossing a River

No, he will need to swim west
20. ### Vectors Question using Calculus -- Swimmer crossing a River

From what I acknowledge, he's moving perpendicular to the current. Is he going North?
21. ### Vectors Question using Calculus -- Swimmer crossing a River

He's swimming straight ahead. He's moving in a straight line, so you're right we wouldn't use that. Would I move on directly to an equation that solves for speed?
22. ### Vectors Question using Calculus -- Swimmer crossing a River

I'm not sure if this is right.. if it is, I am thinking of a way to calculate the direction.
23. ### Vectors Question using Calculus -- Swimmer crossing a River

Will I be using Pythagorean's formula?

25. ### Vectors Question - Calculus

listen buddy you either help me get started or leave
26. ### Vectors Question - Calculus

Well, see, I'm not so sure how to start. I'm assuming I'd multiply mass with gravity...? I don't know how to incorporate the lengths.
27. ### Vectors Question - Calculus

A 45 kg chandelier is suspended by two chains of lengths 5 m and 8 m attached to two points in the ceiling 11 m apart. Find the tension in the 5 m rope.
28. ### Vectors Question using Calculus -- Swimmer crossing a River

Hi! I have a physics question I need help with. Bob can swim at 4 m/s in still water. He wishes to swim across a river 200 m wide to a point directly opposite from where he is standing. The river flows westward at 2.5 m/s and he is standing on the South bank of the river. a. What is the speed...