Answer
s = 20 ft
Work Step by Step
$v_{0}$= 12$\frac{ft}{s}$
$s_{0}$= 0 m
t = 10 s
a = -2$\frac{ft}{s^{2}}$
Using the kinematic equations, we have:
x = $x_{0} + v_{0}t + \frac{1}{2}at^{2}$
s = $(0) + (12)(10) +\frac{1}{2}(-2)(10^{2}) $
s = 120 -100
s = 20 ft