Three particles move along the x-axis, each starting with a velocity of 10 m/s at t=0 s. The graph for A is a position-versus-time graph; the graph for B is a velocity-versus-time graph; the graph for C is an acceleration-versus-time graph.
Part E:
Find the velocity of particle C at work with the geometry of the graphs, not with kinematic equations. Express your answer to two significant figures and include the appropriate units.