Suppose that a simple pendulum consists of a small 67 g bob at the end of a cord of negligible mass. If the angle 8 between the cord and the vertical is given by 8 (0.065 rad] cos[(4.6 rad/s) t + @]. what are (a) the pendulum's length and (b] it's maximum kinetic energy? (a) Number Units (b) Number Units eTextbook and Media Save for Later Attempts:0 of 10 used Submit