Originally Posted By: paul
Quote:
I used exactly the same reason you used to say


even your above shows that

80N * 50 seconds = 4000N is correct


I'm using your way Paul! I know both examples are wrong.

I copied your way for the 1st equation, then I used the same way for the 2nd equation, and got a clearly wrong answer.

Tell me why your way works for kg.m/s/s but not for m/s. Clearly both units "have seconds included". That was your reason for using kg.m/s/s (N) instead of kg.m/s (Ns). So it should also be your reason for using m/s instead of m.