Question

a balloon is flying up with a constant velocity of 5 metre per second at a height of hundred metre a stone is dropped from it at the instant the stone reaches the ground level the height of the balloon will be​

Answer 1

Answer: At the instant the stone reaches the ground level the height of the balloon will be​ = 122.5 m

Explanation: time in which the stone would reach ground t = squreroot of h/5 ( from s = Vit +1/2 at^2 )

it implies that t = 4.5 sec

Now the height of balloon after 4.5 sec = 100 + 5×4.5 = 122.5 meter

Answer 2

Explanation:

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