Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 17)

Calculate, to 3 significant figures, the lower bound of the average speed for those measured times and distances. The distance travelled is 6.4 cm in 1.2 seconds, both values to 2 s.f.

4.83 cm/s

4.87 cm/s

4.875 cm/s

4.90 cm/s

Explanation

The lower bound speed is found by dividing the lower bound of distance (6.35) / the upper bound of time (1.25). 6.35/1.25 = 5.08 cm/s, to 2 sig figs = 5.1 cm/s

Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 17)

Explanation

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