1. The problem statement, all variables and given/known data g=10m/s^2 A fully loaded Saturn rocket has a mass of 2.92x10^6kg. Its engines have a thrust of 3.34x10^7N. a) How much does the rocket weigh. answer 2.92x10^7 N b) What is the net force on the rocket when it blasts off? answer 4.2x10^6N c) What is the acceleration as it leaves the launch pad? 144m/s^2 d) What is its speed after 60 seconds? answer 86.4m/s e) As the rocket moves away, the engine thrust is constant but the mass decreases - why? What effect does this have on acceleration. answer Fuel is consumed; m decreases, a increases. 2. Relevant equations F=ma P.E. =mgh 3. The attempt at a solution I have no idea how the answer for b) becomes 4.2x10^6N Any help would be appreciated.