For this part, we need to make some changes: Change the height of the cannon to zero (ground level). To do this, drag the cannon down with your mouse. Note that the smallest angle is now 25. Instead of a pumpkin, use a cannonball as projectile (because.. well.. we've got a cannon, so why not?) Keep the initial speed set at 15 m/s Ignore air resistance - so make sure the "Air Resistance" option is NOT selected