Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks!
Please see attached for actual problem. Note that I only need help with the last part of this problem!
Because the direction of final angle depends on the final velocity components in horizontal and vertical directions. and inturn the initial direction of projection.
For the final minimum angle, the vertical component of the final velocity should ...
The solution provides a step-by-step calculation for the minimum final angle at which a falling rock can strike the ground when it has been thrown off a building.