The spring mass system which is initially at rest starts free vibration with an initial displacement of x0 = 0.12 m and an initial speed of v0 = 0.6 m/sec. The mass is 2 kg, and the spring constant is k = 288 N/m. Calculate the position x, and speed v of the block at t = 1 sec. (30 Points) ω = k/m, x = v0 ωsin(ωt) + x0 cos(ωt)