Tarzan (m = 85.0 kg) tries to cross a river by swinging from a vine. The vine is 10.5 m long, and his speed at the bottom of the swing (as he just clears the water) is 9.00 m/s. Tarzan doesn't know that the vine has a breaking strength of 1000 N. Find the tension on the vine. Does he make it safely across the river? m = 85.0 kg, r = 10.5 m, v = 9.00 m/s, T = ? fc = mac, ac = v2/r, therefore fc = mv2/r sigma f = m(v2/r) T - mg = m(v2/r) T - (85)(9.8) = (85)(92)/(10.5) T - (833) = 655.714 T = 1488.71, no Solution is wrong. Can someone point me in the right direction, or point out my mistakes? Thanks in advance!