Solve the following problem gene below:
Problem: A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 m/s2. The acceleration period lasts for time 10.0s until the fuel is exhausted. After that, the rocket is in free fall.
Part A: Find the maximum height ymax reached by the rocket. Ignore air resistance and assume a constant acceleration due to gravity equal to 9.80 m/s2.
I want you to clarify the physics in this above problem.