1. The problem statement, all variables and given/known data A 2.49×104-kg rocket blasts off vertically from the earth's surface with a constant acceleration. During the motion considered in the problem, assume thatg remains constant. Inside the rocket, a 14.5-N instrument hangs from a wire that can support a maximum tension of 37.3 N . I found that : Acceleration = 15.42 m/s^2 Find the minimum time for this rocket to reach the sound barrier (330m/s) without breaking the inside wire. The answer to this was 21.4 . How far is the rocket above the earth's surface when it breaks the sound barrier? 3530 m. Now I have to find the maximum vertical thrust of the rocket engines under these conditions. 2. Relevant equations I tried using F=ma and some basic kinematics. 3. The attempt at a solution Using F=ma... i tried F=(2.49x10^4) * 15.42 . This wasn't correct.