Answers

2015-11-20T15:34:13+05:30
given , 
velocity of the airplane = 600 km/h = 166.6 m/sec
height from ground = 1960 meter 
now ,
s = ut + 1/2 at²
1960 = 0 * t + 1/2 * 9.8 * t²
1960 = 4.9 * t²
1960 / 4.9 = t²
400 = t² 
20 = t 
therefore time taken = 20 sec 
now the distance = velocity * time 
= 166.6 * 20 
=3332 meter .
therefore the answer is 3332 meter .
             i hope it helps.......................^_^
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