A point on the tip of a tuning fork vibrates in harmonic motion described by the equation d = 14 sin wt. Find w for a tuning fork that has a frequency of 528 vibrations per second.

Please help... i'm struggling with this math analysis class (calculus/ trig.) and my teacher is hella smart... so when you ask him for help he makes you look dumb so please help. I dont know how to solve this equation with time?