Question

C.A student performs the experiment and measures the distance between photogates d=50 +/- 0.1 cm, the times measured by photogates: t1=0.052 +/- 0.001s and t2=0.035 +/- 0.001s and the carts length s=10 +/- 0.5cm. Find the acceleration a of the cart and estimate the uncertaintainy in a.

D. The student repeats the measurements and obarins more values of the accerelation: 5.15 m/s^2, 4.22 m/s^2, 4.63m/s^2, 3.92m/s^2, 4.58m/s^2, 4.27m/s^2. Calculate the best estimate of a and the random uncertainty of theses results (don't forget to include the very first value for part c)