Suggested Answer
at rest, initial speed zerox=v(initial) t+ 1/2 at^2-1000m=0(10) + 1/2 a 10^2-1000m=50aa = -20 m/s^2
Related Question in Physics
at rest, initial speed zerox=v(initial) t+ 1/2 at^2-1000m=0(10) + 1/2 a 10^2-1000m=50aa = -20 m/s^2