1. The problem statement, all variables and given/known data A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. The mass has a speed of 3.00 m/s when the pendulum is 30.0° above its lowest position. (a) What is the maximum angle away from the lowest position the pendulum will reach? 2. Relevant equations 1/2mv^2(initial) + mgh(initial) = 1/2mv^2(final) + mgh (final) 3. The attempt at a solution 1/2mv^2(initial) + mgh(initial) = 1/2mv^2(final) + mgh (final) 1/2(2)(3)^2 + (2)(9.8)(2)cos(30) = 1/2(2)(0)^2 + (2)(9.8)(2)cos(theta) And solving for theta, I get some imaginary number or something. I can't figure out what I'm doing wrong, or maybe I just messed up from the beginning. Thanks!!