A cart of mass m = 1.10 kg on a track undergoes a collision with another cart. It's velocity before and after the collision, vi and vf is measured and found to be vi = 2.12¡À0.06 m/s and vf = 0.60¡À0.08 m/s. Calculate the following quantities including their uncertainty. Uncertainties must be stated to correct number of sigfigs, WebAssign will check your answer for the correct number of significant figures. but you should keep more figures for intermediate calculations, rounding only at the end.