University physics 1

Motion in Two Dimensions The previous experiment was two balls and listen. Now you are timing one ball. A single measurement using the stopwatch method in the lab will not produce a meaningful result. To get a reasonable result you need to make multiple measurements. How large could the uncertainty be if you used a meter stick and stopwatches? Outline how you would make the measurement and how you would estimate the measurement uncertainty. What factor(s) do you think will contribute to the measurement uncertainty (spread function)? Question: Using the stopwatch method, suppose you drop a ball from 1.50 m above the floor and assume the average value turned out to be the expected time and the standard deviation is about 0.1 s. Estimate the worst case value of g among about 2/3 of the population. Use the kinematic equations to determine the expected time of fall