In a flood relief area an helicopter going vertically with a velocity of U drops first batch of
food packets which take 4 secs to reach the ground. No sooner this batch reaches the ground
second batch of food are released and this batch takes 5 secs to reach the ground. From what
height was the first batch released? Also determine the velocity with which the helicopter is
moving?
No answers have been given to this question yet :(
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