1. The problem statement, all variables and given/known data A body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation A=Ai * sin(wt+ (pi/3)) , Where w = pi radians per second, t is in seconds, and Ai = 2.4m. What is the phase of motion at t = 9.4 seconds? Answer in units of radians. 2. Relevant equations A is the amplitude. Ai is the initial amplitude. w is actually "omega" but I didn't know how to enter that. That is the given angular velocity in rad/s. Pi is 3.14..... 3. The attempt at a solution I honesty don't know where to start. I just plugged into the equation with the given data and got -1.78355 meters. The answer wants radians. Also, it asks for the "phase of motion". The answer I got is just the final amplitude at the given time. Any help would be appreciated. Thanks.