A block is attached to a spring and rests on a horizontal, frictionless surface. The block is pulled to the right and released from rest when the clock starts counting and t = 0. The block oscillates back and forth about its equilibrium position, and the motion at any time is described by:x(t) = (3.5 cm)cos[(0.8 rad/s)t].What is the value of the t the second time the block goes through the equilibrium position?