1. The problem statement, all variables and given/known data An object in SHM oscillates with a period of 4 s and an amplitude of 10 cm. How long does the object take to move from x= 0 cm to x=6 cm? 2. Relevant equations 3. The attempt at a solution I think I should use the formulas v(t)= -omega*Asin(omega*t + phase constant) x(t) = Acos(omega*t + phase constant) But once again, I cannot find the phase constant and I do not understand the physical meaning of the phase constant. I really am having a lot of difficulty with these types of problems.