A position time graph for a particle moving along the x axis is shown in Figure P2.7.
(a) Find the average velocity in the time interval
s to s. and xf = m xi = m

(b) Determine the instantaneous velocity at t = 2.00 s by measuring the slope of the tangent line shown in the graph.
(c) At what value of t is the velocity zero?



x1 = m ,t1 = s
x2 = m , t2 = s