Complex Kinematic problem for grade 12 phyiscs

[makio]

a daredevil motorcyclist attempts to leap a 48m wide gorge. At the side where the cyclist starts, the ground slopes upward at an angle of 15 degree. beyond the far rim, the ground is level and is 5.9m below the near rim. what is the minimum speed necessary for the cyclist to clear the gorge

 

[rl.bhat]

How much you know about the projectile motion? Any relevant equations describing the projectile motion?