1. The problem statement, all variables and given/known data You are touring a distant planet on which the magnitude of the free-fall acceleration is 65.0 % of what it is on Earth. For a little excitement, you jump off a precipice 500 m above the planet's surface. After 5.00 s of free fall, you ignite the jet-pack on your back, changing your acceleration to some new, constant value for the remainder of the fall. You reach the ground 26.0 s after igniting the jet-pack. At what speed do you hit the ground? 2. Relevant equations d=vt+1/2at^2 v=vi+at 3. The attempt at a solution Can someone tell me what I'm doing wrong? I've entered this onto my homework website, but it's telling me my answer is wrong, or perhaps I've might've missed something. I've retried this question multiple times, first time getting 0.441 m/s, second time entering 0.449 m/s. I'm on my last few tries, and every time I enter a wrong answer I lose marks.