Physics problem : the balloon is rising at a velocity of 11 m/s and is riding an easterly wind of 4.3m/s ,2000 meters from the balloon; the missile is launched at a velocity of 15 m/s. determine how long after the balloon leaves the ground that the rocket has to be fired in order to take out the balloon solve vector problem

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jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.