Title: equation of simple harmonic motion
Category: Kinematics of SHM
Summary: this is a word problem addressing one property of phase constant in simple harmonic function, which is that the value of phase constant does not change over time, but sometimes people may forget about that because the simple harmonic motion equation is a function of time.
https://blogs.ubc.ca/phys101/files/gravity_forms/1-72f8f8fec225ededbd95c074100f3d9f/2015/01/Capture3.PNG