Question: (a) To find the velocity of a cart on a horizontal air track, a student mea-sures the distance d it travels and the time taken t as d = 5.10 ± 0.01 m and t = 6.02 ± 0.02 s. What is his result for v = tilt, with its uncertainty?
(b) If he measures the cart's mass as m = 0.711 ± 0.002 kg, what would be his answer for the momentum p = mu = mdlt? (Assume all errors are random and independent.)