The uncertainty in the value of the momentum of a trolley passing between two points X and Y varies with the choice of measuring devices. Measurements for the same trolley made by different instruments were recorded. 1 distance between X and Y using a metre rule with cm divisions = 0.55 m 2 distance between X and Y using a metre rule with mm divisions = 0.547 m 3 timings using a wristwatch measuring to the nearest 0.5 s at X = 0.0 s and at Y = 4.5 s 4 timings using light gates measuring to the nearest 0.1 s at X = 0.0 s and at Y = 4.3 s 5 mass of trolley using a balance measuring to the nearest g = 6.4 × 10⁻² kg 6 mass of trolley using a balance measuring to the nearest 10 g = 6 × 10⁻² kg Which measurements, one for each quantity measured, lead to the least uncertainty in the value of the momentum of the trolley?