1. The problem statement, all variables and given/known data An old rope can now safely suspend 120 kg. When the rope is tied to a beam, it hangs down with a vertical length of 12.0 m. Calculate the minimum time required for an 85 kg person starting from rest to climb the entire length of the rope without breaking it. 2. Relevant equations F = ma Five key equations 3. The attempt at a solution a = f/m a = 1176 N [down] / 85 kg a = 13.835 m/s2 using d = vi(t) + 1/2at2 t = sqrt(1.73) t = 1.3 s But the correct answer is 2.4 s. What did I do wrong? Can someone please help?