The Apollo spacecrafts were launched toward the moon using the Saturn rocket, the most powerful rocket available.

Question:

The Apollo spacecrafts were launched toward the moon using the Saturn rocket, the most powerful rocket available. Each rocket had five engines producing a total of 33.4 x 106 N of force to launch the 2.77 x 106-kg spacecraft toward the moon.
(a) Find the average acceleration of the spacecraft.
(b) Calculate the altitude of the rocket 2.50 min after launch—the point when the spacecraft loses its first stage.