a) The kinetic energy of the leaf is the same for both people:
ΔK=\frac{1}{2} mv^2, b) The change in gravitational energy from the point of view: Person on the ground: ΔG= -mgh, Person on the ladder: ΔG= mgh, c) The final potential energy is zero.
Since an object's gravitational potential energy is directly proportional to its height above the zero point, doubling its height will result in doubling its gravitational potential energy.
Gravitational potential energy is the energy that an object has as a result of being in a gravitational field.For an object close to the surface of the Earth, when the gravitational acceleration can be assumed to remain constant at around 9.8 m/s2, gravitational potential energy is most frequently used.
P.E. is equal to mgh, where h is the height in meters, g is the acceleration brought on by gravity (9.8 m/s2 at the earth's surface), and m is the mass in kilograms, which is the formula for gravitational force. Note that the units for gravitational potential energy are the same as those for kinetic energy, kg m^2/s^2.
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