A bird flies 25.0 m in the direction 55° east of south to its nest. The bird then flies 75.0 m in the direction 55° west of north. What are the northward and westward components of the resultant displacement of the bird from its nest
so this is similar to the last one so we have a bird
we move 55 degrees east of south and 25m so we draw that
|dw:1379787066996:dw|
so we can see that we use the trig identities
so for the eastward component we see we use sin since sin=opp/hyp
so 25*sin55=opp
with that we get the eastward component which is the same as the westward but we put a negative in front of our answer because an eastward component is heading away from west
oh wait excuse me I did not see the second part
so this would be easier to break into two parts
we take the first drawing and break it into the components like explained earlier and then we do the same thing with the second drawing which would be
|dw:1379787452639:dw|
and then you add the components of the two triangles together and you get the components of your displacement
thank you so much you r really smart
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