At launch the rocket had a mass of 2.6110⁶kg.

What is the weight of the rocket?

If required, take the acceleration due to gravity to be 9.81ms²

At lift-off the rocket's engines produce 3.910⁷N of thrust.

What is the acceleration of the rocket at lift-off?

The escape velocity at the surface of the Earth is 11.186kms¹.

Assuming that the rocket's initial acceleration is maintained, how long will it take for the rocket to reach the escape velocity?