Acceleration -- Rocket 1d Kinematics NASA has developed Deep-Space 1 (DS-1), a spacecraft that is scheduled to rendezvous with the asteroid named 1992 KD (which orbits the sun millions of miles from the earth). The propulsion system of DS-1 works by ejecting high-speed argon ions out the rear of the engine. The engine slowly increases the velocity of DS-1 by about 19.0 m/s per day. (a) How much time (in days) will it take to increase the velocity of DS-1 by 13000 m/s? 684.21 days (b) What is the acceleration of DS-1 (in m/s2)? m/s2 I got the days, but I can't find the acceleration, what am I missing? I have tried to do 19.0 * 86400 which is how many seconds in one day.. and that doesnt work.. I have tried other things but too many things to list.