5B An object is undergoing simple harmonic motion with a period of 0.83 s and an amplitude of 0.320 m. When the object is at the position +0.320 m, it is instantaneously at rest and we start our clocks. Find the time at which the object first reaches a position of -0.160 m. What is the main physics equation you will use in order to solve this problem? List the conditions under which this equation applies, along with any assummptions you are making. Sketch the situation, defining all your variables. Apply your equation(s) to solve the problem as an algebraic expression(s). Put a box around it. Calculate your numerical answer(s). Show the units of your answer(s), and how you got them