A projectile is fired from a canon at ground level with initial velocity ms⁻¹ at an angle of 30° to the horizontal.

The equations of motion are    and  .

1. Show that  .  (1 mark)
   

   --- 5 WORK AREA LINES (style=lined) ---

2. Show that  .  (2 marks)

   --- 5 WORK AREA LINES (style=lined) ---

3. Hence find the Cartesian equation for the trajectory of the projectile.  (1 mark)
   

   --- 2 WORK AREA LINES (style=lined) ---