(adsbygoogle = window.adsbygoogle || []).push({}); Need help on a vector problem by tomorrow. :(

1. The problem statement, all variables and given/known data

A woman walks 277. m in the direction 41.6° east of north, then 171 m directly east. Find

(a) her resultant vector displacement from the starting point

There were other parts to the question which I got right, I can't seem to get this one.

2. Relevant equations

None except the pythagorean theorem:

In this case, D=[tex]\sqrt{Dx^2 + Dy^2}[/tex]

3. The attempt at a solution

D1X=cos(41.6°) * 277

D1X=207.1400711

D2X=171

D1Y=sin(41.6°) * 277

D1Y=183.9075609

D2Y=0

Dx=378.14

Dy=183.9075604

D=sqrt(378.14^2+183.9075609^2)

D=420.49 =~ 420.5

Ok, so I got 420.5 and plugged in it. Nope, the computer says it's wrong. I tried rounding it to 421 and that was wrong also. I don't think I made any math errors, what am I doing wrong?

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# Homework Help: Need help on a vector problem by tomorrow.

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