1. The problem statement, all variables and given/known data A bungee jumper undergoes simple harmonic motion with amplitude 6.9 m and frequency 0.115 Hz. Assume the bungee jumper follows the simple harmonic motion equation x=A\cos (\omega t). Find the velocity of the jumper at 0.25s 2. Relevant equations x=Acos(\omega*t) 3. The attempt at a solution Found the angular velocity by multiplying the frequency by 2pi, then plugged my values into the harmonic motion equation to find the x value, and divide by the time interval to find the velocity, but the homework says thats the wrong answer.