The position as a function of time for a particle moving along the x-axis is shown in x(m) the figure. 0.75 0.5 0.25 A t(s) 33% Part (a) When is the particle moving in the -x-direction? For>3 Correct! 33% Part (b) Which of the options below shows a graph of the velocity of the particle as a function of time? A Correct! 33% Part (c) The position of the particle as a function of time is given by z(t) = e (-3), where the position is in meters and time t is in seconds. What is the velocity of the particle, in meters per second, at t=5.5 s? v(t)- m/s