Please solve and show how you did it.

If you ignore the effect of friction and treat this situation as an instance of simple harmonic motion, the horizontal position of the marble as a function of time is given by the function h(t) = A cos 2nft, where A is the maximum displacement from rest position, in centimetres, f is the frequency, in hertz, and t is time, in seconds. In the given situation, the spring oscillates every 1 s and has a maximum displacement of 10 cm. a) What is the frequency of the oscillating spring? b) Write the simplified equation that expresses the position of the marble as a function of time. c) Determine a function that expresses the velocity of the marble as a function of time. d) Determine a function that expresses the acceleration of the marble as a function of time