Answer: [M⁻¹L³T⁻²].
- A [M⁻¹L³T⁻²]
- B [ML³T⁻²]
- C [M⁻¹L²T⁻²]
- D [MLT⁻²]
Correct answer: A. [M⁻¹L³T⁻²]
Explanation: From F = Gm₁m₂/r², G = Fr²/m² = [MLT⁻²][L²]/[M²] = [M⁻¹L³T⁻²].
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.