A spring weighted at one end is bouncing up and down with initial displacement of 15 cm. T...

A spring weighted at one end is bouncing up and down with initial displacement of 15 cm. The displacement is given by the equation d(t) = 15 cos (St), where t is in seconds and d(t) is in centimeters. Find the displacement to the nearest tenth of a centimeter for the following times. t = 0.002