Question

when an object falls freely to the ground ,its acceleration is uniform give reasons

Answer 1

hey mate .
when an objects falls freely its acceleration is constant because in a free fall the acceleration does not depends on the mass of body . the uniform acceleration is produced due to gravitational force . in other words when a body falls freely to the ground under the action of gravity . its velocity increases at the constant rate of 9.8m/s²

Answer 2

this is because the attracts all the object with a uniform speed weather it is a feather or a huge rock but the only thing which makes a differences is the air. if we take two obj of different masses in a vacume than they will touch the ground at the same time because g is constant which is 9.8