Question

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 1

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