1. The decimal place of the standard error coincides with the least significant digit and determines the number of significant figures in the values of h and d. Because these are used to calculate the experimental value of ,g, they determine the number of significant figures in your value of g. How many significant figures are in your values of ir and d, and how many are in your experimental value of g?
2. Would friction tend to cause your experimental value for g to be greater or less than 9.80 m/sec2? In which direction is your error for the value for g? Could friction be the cause of your observed error? State your reasoning.
3. What was the instantaneous velocity of the cart at x=4.00 meters assuming your value of the acceleration a is correct? Show your work.
4. State how well the objectives of this laboratory were met. State your evidence for your opinion.