Question

A bird was flying in line parallel ti the groud from north to south at the height of 2000 meters. Tom ,standing in the middle of the feild, first odsorve the bird inthe noth at the angle of 30degree after 3minutes he again oderve in south at angle of 45dergree
Find the speed of the bird in km/h

Answer 1

Answer:

Step-by-step explanation:

Let x be the distance covered by the bird to the left of boy

So 200/x = tan30 =1/root3

x = 200root3

Similarly let y be the distance travelled by the bird in the right of the boy

200/y = tan45 =1 , y =200

Speed  = (x+y)/180 = 200(root3 + 1)/1800 = (root(3) + 1)/9 = 2.73/9 = 0.303 m/s

Answer 2

Hope it help you in your answer !!!