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March 6, 2015

March 6, 2015

Posted by **july** on Sunday, October 9, 2011 at 3:45am.

1- What are the (X) and (Y) components of (V1) vector ?

2-What are the (X) and (Y) components of(V2) vector ?

3-Determine the magnitude of the sum (V1+V2).

4-Determine the angle of the sum (V1+V2).

i've got the answers of the first three questions

1- 6.3,0

2- 5.2,7.4 units

3- 7.5 units

i tried putting tan-1 y/x

fot the 4th question but i've got the wrong answer

i need a help

- physics -
**drwls**, Sunday, October 9, 2011 at 5:35amI do not agree with your answer to #3, either.

V2 components are (5.16, 7.37)

V1 + V2 has components (11.46,7.37)

V1 + V2 has magnitude = 13.63

Angle of V1 + V2 = tan-1 y/x

= 32.7 degrees

counterclockwise from the +x axis.

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