A124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 27.3 m/s a 1.0-kg stone is thrown from the basket with an initial velocity of 16.8 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. the person in the basket sees the stone hit the ground 7.60 s after being thrown. assume that the balloon continues its downward descent with the same constant speed of 27.3 m/s . a- how high was the balloon when the rock was thrown out? b- how high is the balloon when the rock hits the ground? c- at the instant the rock hits the ground, how far is it from the basket? d- just before the rock hits the ground, find its horizontal and vertical velocity components as measured by an observer at rest in the basket. e- just before the rock hits the ground, find its horizontal and vertical velocity components as measured by an observer at rest on the ground.