Question

7. A peacock is sitting on the tree and observes its prey on the ground.
It makes an angle of depression of 22° to catch the prey. The speed
of the peacock was observed to be 10 km/hr and it catches its prey in
1 min 12 seconds. At what height was the peacock on the tree?
(cos 22° = 0.927, sin 22° = 0.374, tan 22° = 0.404) (HOTS)
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Answer 1

Answer:

78.4 m

Step-by-step explanation:

speed=10 km/hr

=10×1000/60×60

=100/36

=25/9 m/s

time =72 sec

AB=V×T

=25/9×72

=200

SIN20°=AC/AB

0.374=AC/200

0.374×200=AC

AC=74.8 m

Height of peacock on the tree is 78.4 m.