Answer: 8 kg.
- A 4 kg
- B 10 kg
- C 2 kg
- D 8 kg
Correct answer: D. 8 kg
Explanation: Since F = mL/T<sup>2</sup>, mass = F T<sup>2</sup> / L = (10)(2<sup>2</sup>)/5 = 40/5 = 8 kg.
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.