The variation with time ttt of the acceleration aaa of an object is shown. At t=0t = 0t=0 the object is at rest. Graph showing acceleration (a) in ms^-2 versus time (t) in s. The graph is a straight line passing through the origin and (10, 10).What is the speed of the object when t=8.0 st = 8.0\text{ s}t=8.0 s?