Question

out of the Four physical quantities associated with the motion of an object viz, force, velocity, acceleration and Momentum which one remain constant for all body large or small and undergoing a free fall

Answer 1

out of four ,force on the body remain constant because F=ma. mass of the body is constant and acceleration due to the gravity also remain constant. hence F=mg remain constant

Answer 2

nimai to be a problem with this, but I think I have a look at the moment, but I think it is the difference in the reaction to