Question Detail
Question
Which of the following unit is equivalent to kg·m⁻¹·s⁻²?
Correct Answer
Option D is the correct answer.
Detailed Explanation
kg·m⁻¹·s⁻² is the dimension of pressure. N/m² and Pa are pressure units. J/m³ is energy per volume, which also has same dimension (since J = N·m).
Hint
Pressure = force/area = N/m² = Pa. Energy density = J/m³.