Which one of the following is the physical    quantity of the unit `(Nm^(2))/(kg)^2` ? 

Options

A. Linear momentum
B. Gravitational force
C. Universal gravitational constant
D. Acceleration of gravity

Answer

D

Explanation

`implies F = (Gm_1 m_2)/r^2`
`:. G = (Fr^2)/(m_1m_2)`
`:.` unit of G = unit of `(Fr^2)/(m_1m_2)`
`= (Nm^2)/(kg^2)`