4. [-/20 Points] DETAILS Suppose that the position of a particle as a function of time is given by the expression: x (t ) = (-3+4 + 2+3) 1 + 2+47 Determine the velocity as a function of time, v(t) = + Determine the acceleration as a function of time, a(t) = + Determine the direction of the acceleration at t=1.1s, 0a(t=1.1) = degrees NOTE: Be certain to add 180 to your angle, if appropriate. Submit