Which of the following equations correctly relates final velocity

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

v

, initial velocity

u

and displacement

s

for an object in free fall (downward taken as positive)? (a)

v^2 = u^2 - 2gs

(b)

v^2 = u^2 + 2gs

(c)

v = u + gs

(d)

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