Question

A packet is released from a balloon which is moving upward when the balloon is at a height 200 m above ground. The packet reaches the ground in 8 sec. Speed of the balloon when the packet is released, is: (Take g = 10 m/s2)​

Answer 1

Answer:

15 m/s

Explanation:

Time taken to reach the ground is 8 second

Hence H=Ut+ 1/2gt²

h= -ut + 1/2gt²

200=-u(8) +  1/2 (10) (8)²

8u=320-200=120

8u=120

u=15 m/s

Answer 2

Answer:

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