A Union student decided to depart from Earth after graduation to find work on Mars. Careful calculations made regarding the space shuttle to be built used the following mathematical model for the velocity (in ft/sec) of the shuttle from liftoff at [math] seconds until the solid rocket boosters are jettisoned at [math] seconds: [math] Using this model, consider the acceleration of the shuttle. Find the absolute maximum and minimum values of acceleration between liftoff and the jettisoning of the boosters.

1.  Absolute maximum of acceleration=
2.  Absolute minimum of acceleration=