(1 point) The height y of the weight of a swinging pendulum relative to its lowest position at time t is given by where L is the length of the pendulum, 9.81 m/s2 is the acceleration due to gravity, A is the maximum angle of the swing from the vertical and Ï is some constant determined by the initial position of the weight. Find y and at t = 0 if L = 1.55 m, A = 0.297 rad and Ï = 3.859 rad. Round your answers to at least 3 significant figures and include the units. (Hint: what should the units of y andt be?) dy dt ã«,- dy dt |t=0