Question

give reason -when an object falls freely to the ground its acceleration is uniform

Answer 1

Thank you for getting in touch with us for the answer of your query. When an object falls freely towards the ground its acceleration is uniform because, an acceleration is usually caused when an external force is applied whereas here there is only air friction wind speed and gravitational force, and both of these are constant. I hope this response answers your question well and will be helpful for you.

Answer 2

Practically the acceleration is not uniform. In principle of physics we disregard upthrust caused via air, yet essentially it can't be dismissed, for all acceleration, it's quickening is not simply 'g', rather at every moment of falling there is uncertainty in increasing speed. The gravitational force because of the earth is by all account not the only force following up on the body, rather the dragging power because of air is additionally there.If the force is not the same all through the movement, at that point acceleration can't ever be uniform while falling.

Around the estimation of acceleration because of gravity fluctuates as g=g°{1-(2h/R)} where g° is the acceleration because of gravity close to the surface of the earth, h is the tallness of the object over the surface of the Earth and R is the radius of the Earth.