An object travels east from the starting position of (0, 0). A position versus time graph is shown below. A Position versus Time graph is shown with y-axis labeled position in centimeters up to 5.0 and x-axis labeled time in seconds up to 8. A line connects points 0, 0 and 4, 4.0. A horizontal line connects points 4, 4.0 and 8, 4.0, through the point 6, 4.0. This object was moving at a velocity of 1.0 cm/s east at the end of 4.0 seconds. Determine the average and instantaneous velocities in cm/s at 6.0 seconds. Average = 1.0 cm/s east; instantaneous = 4.0 cm/s east Average = 4.0 cm/s east; instantaneous = 6.0 cm/s east Average = 0.67 cm/s east; instantaneous = 0 cm/s Average = 1.0 cm/s east; instantaneous = 0 cm/s