Answer:
t=6.325 s
Step-by-step explanation:
Using the four kinematic equations to answer this question. The four kinematic equations are given as follows.

We will use equation number three.

Where...
- "Δx" is the distance covered by the car (100 m)
- "v_0" is the initial velocity (0 m/s since the car starts from rest)
- "a" is the acceleration (5.0 m/s²)
- "t" is the time we want to find
Plug our known values into the equation and solve for t.

Time can't be negative. Thus, t=6.325 s.