A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration m 53.9 The acceleration period lasts for time 7.00 s until the fuel is exhausted. After that, the rocket is in $2 free fall. 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 Write your answer numerically in units of meters. $2