The questions go together

QUESTION 4 In this experiment, the theoretical value of the range for each value of 0, calculated from equations 3 and 4 in your lab manual, actually contains some uncertainty, due to the uncertainty in the experimentally obtained value of vi. This uncertainty will need to be calculated separately for each value of 0, and used to set the error bars for your theoretical curve on the graph of R vs 0. Suppose your measurements from the horizontal launch of the projectile at a particular setting of the launcher were y = 116 1 0.5 cm, and x = 137 1 2.8 cm, what is the fractional uncertainty in your value of vi? (Use g = 980 cm/s2.) QUESTION 5 If the velocity for a particular setting of the launcher is measured to be 614 + 3.3 cm/s, what is the uncertainty in the theoretical value of the range, R, at 0 = 280, as calculated from equation 4? (Use g = 980 cm/s, and you can assume that there is no uncertainty associated with either g or 0.) Note that it is the uncertainty in the theoretical value of R that you wish to calculate here, not the fractional uncertainty or the per cent uncertainty