A ball is projected vertically upward with initial speed

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

Problem

u

. Upward is chosen as positive. Which expression represents its velocity

v

after time

t

? (a)

v = u + gt

(b)

v = u - \dfrac{1}{2} g t

(c)

v = u - gt

(d)

v = u + 2 g t