Determining the initial velocity: The velocity at zero time is referred to as the 'initial velocity'. From your velocity vs time graph, read the initial velocity from your velocity vs time graph and enter its value in your data sheet. 3b. Determining 'g': Determine g (the acceleration on planet 'X') by taking the slope of that line. Enter its value on your data sheet. Position 600 500 400 300 200 100 0 -100 12.5 34 2 Velocity vs Time 64.5 154.5 104... ********* 210 276.5 Time(seconds) 352 8 436.5 530 10 12