1. The problem statement, all variables and given/known data A cheerleader waves her pom-pom in simple harmonic motion with an amplitude of .180m and a frequency of .850Hz. a) Find the maximum magnitude of the acceleration and of the velocity. b) Find the acceleration and speed when the pom-pom's coordinate is x=+.090m. c) Find the time required to move from the equilibrium position directly to a point .120m away. d) Which of the quantities asked for in parts (a), (b), and (c) can be found using the energy approach (E = K + U = 1/2 mv^2 + mgh = 1/2 kA^2) and which cannot? Explain. 2. Relevant equations i. x=Asin(ωt) ii. vx,max=ωA iii. ax,max=-ω2A where ω=angular frequency, A=amplitude, x=displacement from equilibrium, t=time K=1/2 mv^2 U=mgh 3. The attempt at a solution I was able to calculate (a) using formulas ii and iii. vmax=.961m/s; amax=5.13m/s^2 I was also able to calculate (c) using formula i. x=7.16s However, I am unsure of how to find (b). I think (d) is velocity but I'm not sure if from velocity you'd be able to get x and acceleration?