The phenomena: Three rocks of equal mass are thrown with identical
speeds from the top of the same building (identical height). Rock X is thrown vertically downward, rock Y is thrown vertically upward, and rock Z is thrown horizontally. Note: when analyzing phenomena using the Energy-Interaction Model, only the initial and final indicators of the energies involved need to be considered for a selected interval.
Q)c) Rock X: Construct an Energy-Interaction (BUBBLE) diagram for rock X, which is thrown straight down. Write out the expression for energy conservation, based on your Energy-Interaction diagram, as ∆E's; then substitute in algebraic symbols for the different energies. You may try to solve it for the final speed, vf, in terms of all over parameters.