Find the space craft's average acceleration while the motors were firing.
A space craft flying in a straight course with a velocity of 75 m s−1 fires its rocket motors for 6.0 s.At the end of this time, its speed is 120 km s−1 in the same direction.Find:(i) the space craft's average acceleration while the motors were firing,(ii) the distance travelled by the space craft in the first 10 s after the rocket motors were started,the motors having been in action for only 6.0 s.