A 2.0 kg body falls in free fall, from rest, from a point located 5.0 m from the ground. Consider g = 10 m/s². In relation to the body's mechanical energy, we can state that:
I. increases during the entire fall of the body, as the kinetic and potential energies increase;
II. is equal to the sum of the kinetic and gravitational potential energies at any point on the trajectory;
III. at the beginning of the fall is worth 100 J.
Check the correct alternative.
A) Only I is correct.
B) Only I and II are correct.
C) Only I and III are correct.
D) Only II and III are correct.
E) Only III is correct.

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.