You've taken a summer job at a water park. In one stunt, a water skier is going to glide up the 2.0m high frictionless ramp, then sail over a 5.0m wide shark tank. You will be driving the boat that pulls her to the ramp. She'll drop the tow rope at the base of the ramp as you veer away. What minimum speed must you have as you reach the ramp such that she survive?. Two questions: Why cant I use projectile motion to find her minimum horizontal speed?, and how do I solve this without projectile motion with little information (e.g her mass).