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michelle, a forestry officer on watch from a lookout 35 m above the ground, notices a small brush fire at an angle of depression of 16 degree. How far, in metres, would a fiire-fighting aircraft, currently derictly over the lookout, need to fly to drop its load on the fire?

 May 24, 2015

Best Answer 

 #2
avatar+981 
+10

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 May 24, 2015
 #1
avatar+101431 
+5

We have.......

 

tan 16 = 35 / d     where d is the distance from the lookout to the fire    .....re-arrange

 

d = 35 / tan 16 =  about 122.06 m

 

 

 May 24, 2015
 #2
avatar+981 
+10
Best Answer

zacismyname May 24, 2015
 #3
avatar+101431 
0

Nice pic and explanation, zacismyname.....!!!!

 

 

 May 24, 2015
 #4
avatar+981 
0

Thanks :)

 May 24, 2015

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