Answer to Question #42203 in Physics for Tinus

Question

State the energy change that takes place as a person falls from 20m to 25m below the platform.

Answer 1

The energy change depends on the person's mass. So, if it equals m, the change of potential energy will be

dE = m*g*dh,

where g = 9.8 m/s2 is the acceleration of free fall and dh = 25m - 20m = 5 m.