The position of the center of the box shown is given by the equation: x = 4.4 m * cos(29/sec * t) (a) What is the position of the box 2 seconds after the oscillations have started? x = m I dont know how to start A. I plugged in 2 seconds for t in the above equation, but my answer is not right. (b) What is the amplitude of the box's oscillations? The amplitude is 4.4 and it's correct. (c) What is the period of the box's oscillations? The period is 0.21666 seconds and its correct. (d) What is the box's maximum velocity? The max velocity is 127.6 m/s and its correct. (e) What is the box's maximum acceleration? The max acceleration si 3700.4 m/s2 and its correct. (f) How long does it take the box to move from -2.2 m to +2.2 m? I dont know how to approach this one either.