A particle moves with constant acceleration. At t = [)3 the particle is at the origin. At t : Us the particle was moving at a speed of |i| : 17.9%. The particle's velocity makes an angle of 651 with the positive x-axis, 119.5 with the positive y- axis. and 139.6 with the positive z-axis. The acceleration is 6: : 2.83%2' 2.062;}. 5 5 (The input below will accept answers with no more than 1% variation from the correct value.) At what time t > OS is the speed of the particle 28.9% ? s