Faces of sheer terror as rollercoaster harness FAILS on 75mph ride – and camera captures moment thrillseekers realise

CAMERA footage has captured the terrifying moment a young girl was saved by a couple after the restraints failed on a roller coaster. The thrill-seeker’s seatbelt came undone during the first hill of the Mamba ride at Worlds of Fun in Kansas City on October 11. The ride can reach speeds of up to 75…