Question

Two objects of different masses released from rest at the same time falling freely near the surface of moon would ___.

• A. have the same velocities at any instant
• B. have different accelerations
• C. experience forces of same magnitude
• D. undergo a change in their mass

Answer 1

The correct option is A have the same velocities at any instant

The masses of the body will not change in accordance with the law of conservation of mass.

Both the objects have the same acceleration due to gravity given by:
$g=\frac{GM}{R^2}$

Using equation of motion,
$v=u+at$
Since the initial velocity is the same,
$v=gt$

Using newton's second law,
$F=mg$
where $m$ is the mass of the body. Since mass is different and g is the same, force on them is different.