Choose the correct statements from the following

Options

A. The gravitational forces between two particles are an action and reaction pair.
B. Gravitational constant (`G`) is scalar but acceleration due to gravity (`g`) is a vector.
C. The values of `G` and `g` are to be determined experimentally.
D. `G` and `g` are constant everywhere.

Answer

A, B, C

Explanation

Choice a,b and c are correct. When the particle exerts a force on another particle, the second particle exerts an equal and opposite force on the first particle. Choice d is incorrect because although `G` is contant everwhere, the value of `g` varies with height and depth and also from place to place.