What is the most appropriate conversion

[Saladsamurai]

This is for a Statics course:

Evaluate and express in proper SI units and appropriate prefix:

(200 kN)^2

I did $$(200kN)^2=200^2\cdot 10^3 N\cdot10^3 N= 40\cdot 10^3\cdot 10^6 N^2=40\cdot 10^9 N^2= 40 GN^2$$

Is the this correct way to go about this?

Thanks,
Casey

 

[rock.freak667]

...well it looks correct, although the units would be N^2 and not just N.

 

[Saladsamurai]

Yes. Edited. Thanks!