Wednesday

January 28, 2015

January 28, 2015

Posted by **dave** on Friday, March 1, 2013 at 6:58pm.

- math -
**Reiny**, Friday, March 1, 2013 at 8:04pmmake your sketch using the parallelogram property of vectors.

The resultant of 8 will be the diagonal of the quadrilateral with sides 3 and 8

let the angle opposite the resultant be Ø

by the cosine law:

8^2 = 8^2 + 3^2 - 2(8)(3)cos∏

48cosØ = 9

cosØ = 9/48

Ø = 79.163°

so by the ||gm property, the angle between the two vectors is

180-79.163 = appr 100.8°

**Answer this Question**

**Related Questions**

Physics - What should be the angle between two vectors of magnitudes 3.20 and 5....

physics repost - What should be the angle between two vectors of magnitudes 3.20...

physics - two vectors of magnitudes 7 units and 15 units can never give ...

physics - Can you help me with this one also? I know how to do it with 3 vectors...

Physics - What should be the angle between two vectors of magnitudes 3.20 and 5....

physics - Three vectors are shown in Fig. 3-32 (A = 60.0 , B = 56.0°). Their ...

physics - Three vectors are shown in Fig. 3-32 (A = 62.0 , B = 58.0°). Their ...

physics - the vectors sum of two vectors of magnitudes 10 units and 15 units can...

Elementary mechanics - (Q1) 2 forces act on a point object as follows: 100 at ...

Physics - Two vectors of magnitudes 25 N and 22 N act at right angles to each ...