If the rotor kept accelerating at its normal rate, and you somehow stayed attached, then after another full rotation you’d be swinging almost straight outward, with your hands trying to support many times your own body weight. If you hung on for 20 seconds, the rotor would be making one revolution per second, putting several tons of force on your hands. After 30 seconds, you’d have lost your grip on the helicopter one way or another. If your hands stay attached to the rotor, they won’t stay attached to your body.