Answer: 5.7 m.
- A 5.664 m
- B 5.66 m
- C 5.7 m
- D 5.7640 m
Correct answer: C. 5.7 m
Explanation: In addition, the result can only be as precise as the least precise measurement (1.2 m, precise to one decimal place), so the sum 5.664 m must be rounded to 5.7 m.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.