To find the car's acceleration, we can use the equation for acceleration:
acceleration (a) = (final velocity - initial velocity) / time
Given: Initial velocity (u) = 9 m/s Final velocity (v) = 18 m/s Time (t) = 6 s
Plugging in these values into the equation, we have:
a = (v - u) / t = (18 m/s - 9 m/s) / 6 s = 9 m/s / 6 s = 1.5 m/s²
Therefore, the car's acceleration is 1.5 m/s².