A simple pendulum of length 0.30 m has a 0.30-kg bob. At t = 0, the bob passes through the lowest position in its motion, and at this instant it has a horizontal speed of 0.31 m/s. Part A What is the maximum angular displacement v max away from vertical that the pendulum reaches? Part B What is the magnitude of the bob's linear speed v when it has angular displacement v, max /2? Express your answer with the appropriate units.