5Lena, a home-schooled student studying advanced physics, built a small rocket model that ascends vertically at a constant speed of 12 m/s. After 5 seconds, a second stage ignites, increasing the ascent speed to 28 m/s. If the rocket continues to accelerate at 2 m/s² for another 3 seconds after the second stage starts, what is the total height reached by the rocket? - Appfinity Technologies