Question
The universal constant of gravitation G has the unit
NDA
General Ability
General Science
2025
NDA 2025 (Phase 1)
NDA General Ability Question (2025) — Solution
Options
- A. N
- B. m/s
- C. Joule
- D. N-m^2/kg^2
Answer
D. N-m^2/kg^2
Step-by-step solution
According to Newton's law of gravitation, the force between two masses is given by F = G m_1 m_2 r^2 . Rearranging the formula for the universal gravitational constant G, we get G = F r^2 m_1 m_2 . Substituting the SI units for force (N), distance (m), and mass (kg), the unit of G is N m^2 kg kg = N-m^2/kg^2. Answer: N-m^2/kg^2
Related: General Ability — General Science · All PYQ Banks