Question

A body of mass m kg starts falling from a distance 2R above the earth's surface. What is its kinetic energy
when it has fallen to a distance R above the earth stuface? (where R is the radius of Earth).​

Answer 1

Explanation:

A body of mass m kg starts falling from a distance 2R above the earth's surface. What is its kinetic energy

when it has fallen to a distance R above the earth stuface? (where R is the radius of Earth).

Answer 2

Explanation:

When body starts to fall towards the earth's surface its potential energy decreases and kinetic energy increases. Increase in kinetic energy = Decrease in potential energy

Final kinetic energy − Initial kinetic energy = Initial potential energy − Final potential energy

Final O=