Posted by **Anonymous** on Saturday, October 13, 2012 at 9:05pm.

Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30 km due north. If it is to then walk directly to B, (a) how far (in km) and (b) in what direction should it walk (relative to the positive direction of the x axis within the range (-180°, 180°])?

- physical -
**Henry**, Sunday, October 14, 2012 at 9:04pm
d = 21km@255o + 30km@90o + 8km@0o.

X = hor. = 21*cos255 + 8 = 2.56 km.

Y = Ver. = 21*sin255 + 30*sin90=9.72 km.

a. d^2=X^2 + Y^2=(2.56)^2 + (9.72)^2=101

d = 10.1 km.

tanA = Y/X = 9.72/2.56 = 3.79688

A = 75.2o,CCW = 75.2o North of East = The Direction.

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**Anonymous**, Saturday, May 24, 2014 at 4:25am
34

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**bob**, Friday, January 29, 2016 at 10:39pm
this one up top is the wrong way of doing this problem

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