College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 116

If the displacement of an oscillator in SHM is described by the equation y = (0.25 m) cos[(314 rad/s) t ], where y is in meters and t is in seconds, what is the position of the oscillator at (a) t = 0, (b) t = 5.0 s, and (c) t = 15 s