Question

5. Hassan wants to measure accurately how far he can jump. He chooses a
30 cm ruler marked in millimetres.
Explain to Hassan why this is not the best choice of measuring device.​

Answer 1

Answer:

Explanation:

The smallest division of a 30-cm ruler is one millimeter, thus the uncertainty of the ruler is dx = 0.5mm = 0.05cm. For example, an object is measured to be x ± δx = (23.25 ± 0.05) cm.