Physics

Problem

Which of the following equations correctly relates the final velocity

v

, initial velocity

u

, displacement

s

, and acceleration due to gravity

g

for vertical motion when time is not involved? a)

v^2 = u^2 - 2gs

v^2 = u^2 + gs

v^2 = u^2 + 2gs

v = \sqrt{u^2 + 2gs}