1. The problem statement, all variables and given/known data a particle moves to the right along the x axis with a simple harmonic motion from x0 = 3.0cm in t=0 . if its position x is given by x = 4.0 cos (pi t + phi) , in cms ; find its period T. 2. Relevant equations 3. The attempt at a solution The problem ask me more things like the aplitude, phi and others but the amplitude i found was 4.0cm and phi was 41.1 . Now im stuck because im asked more things such as the angular frequency and more the equtions for the velocity , acceleration and more but I need T or omega in order to find those. How can I find T? My guess is that the problem already suggests T but im starting to learn about harmonic motion so I dont see things clearly for now can anyone give em soem help in order to find T or the angualr frecuency ? Thanks lot in advance.