A rocket has a mass of 3.04x10(6)kg. It takes off vertically with a thrust force of 3.40x10(7)N.
(a) The resultant force.
(b) The initial acceleration
(c) After reaching a speed of 2390ms(-1) after 150seconds, the average acceleration.
The Attempt at a Solution
I'd really appreciate someone to provide some help with this, I'm quite stuck :(