Using motion equations and showing your steps, calculate the acceleration of the ball for each row in the above table. You will get a total of five accelerations.

A= 987

(2)Determine the average of the five accelerations. The average acceleration will be the Experimental Acceleration. Usually, it is denoted by the letter E (E is used to indicate that it is an experimental acceleration). The Actual Acceleration is denoted by the letter A. The actual free-fall acceleration on Earth is A =9.8 m/s²

Percent error =(Actual-Experimental)/Actual X 100 % = (A-E)/A X 100 %

(3) Calculate the percent error between the value you obtained for experimental acceleration (E ) and the actual acceleration A= 9.8 m/s²

VI. QUESTIONS:

1. If this experiment is done on the Moon, will the ball's falling times increase or decrease ? Why ?

2. Using the data from the first-row, calculate the final velocity (V_f) of the ball just before it strikes the ground.

3. If the ball was a large plastic ball having a large surface area and air resistance was considered, will the falling times indicated on the table increase or decrease? Explain

VII. What are the possible sources of error for this experiment?

VIII. : Write down your conclusions. In your conclusions describe if you achieved your objectives and what you have learnt from the experiment.