B. In the movie clip the ball was released 7.42 m above the ground. In the same setting the students dropped the ball 3

[answerhappygod]

B In The Movie Clip The Ball Was Released 7 42 M Above The Ground In The Same Setting The Students Dropped The Ball 3 1 (27.14 KiB) Viewed 25 times

B. In the movie clip the ball was released 7.42 m above the ground. In the same setting the students dropped the ball 3 times and measured the times of fall with a stop watch. They recorded the following values: 1.33 s, 1.21 s and 1.24 s. From the average time of fall, calculate the experimental gravitational acceleration. Knowing that the uncertainty in the height measurement is AH = 0.02 m and the average human response time is 4t = 0.2 s, estimate the uncertainty in your experimental g. Refer to the rules for error propagation presented in the introductory materials Basic Concepts of Error Analysis. Report the calculated value of experimental g along with its uncertainty considering the rules for significant figures. Using the given data and ignoring the air resistance, calculate the final velocity of the ball at the bottom of the fall - state this value along with its uncertainty.