## anonymous 3 years ago Word Problem

1. anonymous

2. anonymous

think about how this could happen. Two forces of 50 and 25 N, resultant force of 25 N...

3. anonymous

That's exactly what I need- a diagram. I have no idea.|dw:1367460386063:dw| This is my best guess

4. anonymous

the resultant for the two vectors is 25 N. The resultant for any two vectors has to be somewhere between$\left[ V_1-V_2 \right] and [V_1+V_2]$

5. anonymous

in this case, what is the maximum and minimum sum of these vectors?

6. anonymous

I'm doing trig. I haven't learned that yet, I don't think

7. anonymous

for this problem you don't need any of that.

8. anonymous

Then what do you need? o-o

9. anonymous

find the maximum and minimum length of the resultant.

10. anonymous

Is the dotted line I drew the resultant? And even if it is, I don't see how it can be more than one value if the shape I drew is a parallelogram.

11. anonymous

you are adding two vectors and you don't know the angle between them because that's what you're trying to find.

12. anonymous

Could you draw a diagram for me, please?

13. anonymous

|dw:1367461650410:dw|

14. anonymous

I'm lost. My teacher never used a circle to solve these types of problems.

15. anonymous

I used a circle because you don't know which way the second vector is going relative to the first one.

16. anonymous

I give up. What's 50-25?

17. anonymous

25.

18. anonymous

|dw:1367461942678:dw| Which angle do I need to find?

19. anonymous

|dw:1367462096748:dw| resultant is 25

20. anonymous

|dw:1367462207710:dw| you are supposed to find that angle

21. anonymous

What happened to 38 degrees and 10 minutes?

22. anonymous

it doesn't matter. there is only one way to get a resultant force of 25 newtons from forces of 50 N and 25 N.

23. anonymous

I will take your word for it.