Dimensional formula of gravitational potential is same as-

Which of the following observations point to the equivalence of inertial and gravitational masses?

For a man in a closed cabin that is falling freely under gravity, gravity 'disappears'.

Which of the following observations point to the equivalence of inertial and gravitational masses ?

Time period of a simple pendulum is independent of its mass.

Which of the following observations point to the equivalence of inertial and gravitational masses ?

Two spheres of different masses dropped from the top of a long evacuated tube reach the bottom of the tube at the same time.

Which of the following observations point to the equivalence of inertial and gravitational masses?

The gravitational force on a particle inside a hollow isolated sphere is zero.