Find a model for simple harmonic motion if the position at t = 0 is 0, the amplitude is 3 centimeters, and the period is 2 seconds.
Ad=3cos(pi t)
Bd=2cos(3t)
Cd=3sin((pi/2)t)
Dd=3sin(pi t)
Ad=3cos(pi t)
Bd=2cos(3t)
Cd=3sin((pi/2)t)
Dd=3sin(pi t)