Shota is a dangerous fellow who likes to go rock climbing in active volcanoes. One time, when he was 30 meters below the edge of a volcano, he heard some rumbling, so he decided to climb up out of there as quickly as he could. He climbed up at a constant rate. After 4.5 seconds, he was 7.5 meters below the edge of the volcano. How fast did Shota climb? In total how long did it take Shota to reach the edge of the valcano?

Answer:Shota's speed = 5 m/sIn total, it take 6 seconds to reach the edge of the volcano.Step-by-step explanation:Given;Total height below the edge of the volcano = 30 m(Note that he climbed at constant rate)After 4.5 seconds, he was 7.5 meters below the edge of the volcano.Time = 4.5 sDistance covered = 30 - 7.5 = 22.5 mHis speed = distance covered/time Substituting the values;Speed = 22.5/4.5Speed = 5 m/sTime needed to reach the edge;Time = distance/speedSpeed = 5m/sDistance = 30 mSubstituting;Time = 30/5 = 6 seconds