Question

A car initially at rest accelerates at 8 m/s2. What is the velocity of the car when it has traveled 1 m?

A. 2 m/s
B. 16 m/s
C. 4 m/s
D. 8 m/s

Answer 1

4 m/s

Step-by-step explanation:

d f = d o + v o t + 1/2 a t^2 underlined = 0 in this case

df = 1/2 a t^2

1 = 1/2 8 (t^2 ) shows t = .5 s

then:

vf = a t

8 (.5 ) = 4 m/s