1.

a balloon which is ascending at the rate of 12 m per second is 30.4 m above the ground when a stone is dropped after what time the stone will reach the ground

Answer»

0= (12)^2–2gh( h is the HEIGHT the stone will RISE before start of FALL.) t = 12/10sec ( time to rise above 30.4m.). Total height to fall 30.4+7.2,=37.6 m.Explanation:here's the answer please FOLLOW me



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