You and your friend throw balloons filled withwater from the roof of a several story apartmenthouse. You simply drop a balloon fromrest. A second balloon is thrown downwardby your friend 3.7 s later with an initial speedof 72.52 m/s. They hit the ground simultaneously.How high is the apartment house? Theacceleration of gravity is 9.8 m/s2. Neglectair resistance.Answer in units of m.