Highlight the
three cells A17, B17
and C17 in row 17, and bring the cursor to
bottom right corner of cell C17; the cursor
changes its shape to a plus sign. Drag the cursor all the way to the row
56 (16+40) to fill down the formulas. This ensures we have 40 data points
to draw a graph. If you look at the data at the 56th row you will see that
the value of t is equal to the time of flight T
and the y value is equal to zero again; the
projectile has come back to the same vertical level it started with. The
x value at the 40th point should give the
horizontal range of the projectile. |