on column A, put the values of the domain
that's is in your case, 1 to 10
now, in column B put the formula
in your case, the formula will be
=(10*A1)-(0.5*9.81*A1^2)^0.5
amusing, you put this formula in the cell B1 and having the first domain in the cell A1
after that, repeat the same thing for other 9 rows. Until you reach the last number of your domain.
and, then select the whole thing and create a chart!
check the images that i'd uploaded.