5. A position-time graph for a particle moving along the xaxis is shown in Figure 2.5: (a) Find the average velocity in the time interval / - 1.50 s to r = 4.00 s. (b) Determine the instantaneous velocity at 1 = 2.00 s by measuring the slope of the tangent line shown in the graph. (c) At what value of tis the velocity zero? * (m) 12 10 8 6. 4 2 0 1 2 3 4 5 6 t(s) Figure P2.5​