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PART II: CONSTANT ACCELERATION [N 1-D (35 PTS) A BLOOD DROPLET Blood has been spattered from a body, but the body has been removed. One

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PART II: CONSTANT ACCELERATION [N 1-D (35 PTS) A BLOOD DROPLET Blood has been spattered from a body, but the body has been removed. One drop of blood has evidently fallen past the entire length of a television set. The television set is 1400.0 cm (+f- .05 cm)* cm 'om top to bottom. Due to the modern miracles of precise programing, DVR and coordinated universal clocks, a criminologist concluded that the drop of blood took .20 seconds (+/- .005 seconds)* to fall past the television set. The drop of blood had evidently fallen from some unknown height above the top of the television set. Wherever it fell from, it was initially stationary. *The uncertainties are provided because these quantities are meant to be experimentally measured quantities. As would be the case in an actual experiment, you do not need to pay attention to the uncertainties while you do direct analysis. You need only use them when you are asked to do an explicit uncertainty analysis (part g). Assume that g z 1000 cm/s'. (Whether this value is treated as positive or negative is up to you.) A. In cm/s, determine the instantaneous velocity, v, EITHER at t = .10 see from the instant the droplet passes the top of the television set OR at y = 700 cm below the top of the television set. Choose whichever one velocity you wish, but in order to receive credit, you must specify which instantaneous velocity you have found (5 pts). What was the drop's instantaneous velocity as it passed the top of the television (5 pts)? What was the drop's Instantaneous acceleration as it passed the top of the television (5 pts)? . From how high above the television did the drop come (7 pts)? . Draw a rough but neat and clear Y vs. t graph of the drop's motion from t = 0 sec to t=-4 (4f10) seconds. Place POSITION on the y-axis and time on the x-axis (6 pts). . Refer to your answer for the drop's average velocity past the television screen (part A). An expert witness claims that if certain conditions are true, this victim's blood must have traveled past the screen at an average velocity of 74 crn/sec. Given the measurement digits and uncertainties provided in the fact pattern, explain why your analyzed velocity is or is not consistent with this expert witness's prediction. Show all work (7 pts)

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