Mixed ConceptsMediumQuestion 5057
Question
With tonne (1000 kg), kilometre and hour as base units, what is the numerical value of 1 newton in tonne km hour⁻²?
- A12.96Correct
- B12960
- C1/3600
- D0.01296
Correct answer
12.96
Explanation
Convert each factor: 1 kg = 10⁻³ tonne, 1 m = 10⁻³ km and 1 s = (1/3600) hour. Thus 1 N = 10⁻⁶ × 3600² = 12.96 tonne km hour⁻². The squared time conversion belongs in the numerator after dividing by seconds squared.