My question involves a spring configuration For this configuration, the maximum displacement is .20m Here is a graph of position vs time: a) If m= 1.0 kg, calculate the value of the spring constant b) Calculate the maximum value of both KE and PE c) caluclate the total E for a) F= -kx and F= ma so ma=-kx but how do i find acceleration? for b) I know PE = 1/2 kx^2 and KE = 1/2mv^2 but I dont know what v is? c) E = KE + PE correct? please help. much appreciated.