A Saturn-Apollo rocket has a mass of 5.40 x 105kg. What is the initial acceleration of the rocket if the thrust at lift off is 7.40 x 106 N?
How high will the rocket rise one minute after launch?
The Attempt at a Solution
I used Fg=mg, plugging in 5.5 x 105 for m and 9.8 for g to get Fg=5.292 x 106 N.
I then used the FNET equation as so:
7.4 x 106-5.292 x 106=(5.4 x 105)(a)
And my answer was an acceleration of 3.89m/s2.
For the second question I got that the rocket would reach 233.4m one minute after launch.
Is this correct or how is this done correctly? Thanks!