Answer:
11760 kg / (m-s^2)
Explanation:
Just do the units FIRST
kg m m
m^3 s^2 1
now you can see that the two m's in the top cancel two m's in the denominator and you are left with
kg/ (m-s^2) as units
Now do the numbers
1000 * 9.8 * 1.2 = 11760
so answer is 11 760 kg / (m-s^2)