1. For the region on your graph where the ball is rolling down the incline, record in a data table the value of time and velocity for point where the ball begins to roll, by reading the data value from your graph. Then starting from that point, record time and velocity data for equal time increments (every 0.1s or 0.2s) up to the end of the acceleration such that you have at least 10 data points,.
2. Calculate the change in speed between each of the points in your data table above. Enter these values in the right column of the data table.
3. As stated earlier, Galileo’s definition of uniform acceleration is equal increases in speed in equal intervals of time. Does your data support or refute this definition for the motion of an object on an incline? Explain.
4. Was Galileo’s assumption of constant acceleration for motion down an incline valid? How do your data support your answer?
5. Calculate the average acceleration of the ball between the first and the last time recorded (t1 and tlast) using your data and the definition of average acceleration: