A bomb dropped from a balloon reaches the ground in 30secs . determine the height of the balloon.(a) if it is at the rest in the air.(b) if it is ascending with a speed of 100m/s when the bomb is dropped

Answer 1

0 is the ground altitude , h is the drop height , g is gravitational acceleration

(a) 0 = 1/2 g (30)^2 + h

(b) 0 = 1/2 g (30)^2 + (100 * 30) + h

Answer 2

Please answer it

Answer 3

(a)h=u+1/2gt², h= 0×30+ 1/2×10×30², h=1/2×10×900,
h=1/2×9000, h=4500cm
(b)h=ut-1/2gt²
h=100×30-1/2×10×30²
h=3000-4500
h=-1500cm
h= 1500cm