y/y 1.0 0.5 0 -0.5 -1.0 0.2 04 0.6 xix, PROBLEM 11.93 The damped motion of a vibrating particle is defined by the position vector rx[1-1/(t+1)] + (ye**, cos 2xr), where t is expressed in seconds. For x, 30 mm and y= 20 mm, determine the position, the velocity, and the acceleration of the particle when (a) t=0, (b) t=1.5 s. =