To calculate the acceleration, we can use the formula:
acceleration (a) = (final velocity (v) - initial velocity (u)) / time (t)
Given: Initial velocity (u) = 15 m/s (due north) Final velocity (v) = 30 m/s (due north) Time (t) = 3 seconds
Plugging in the values into the formula, we get:
a = (30 m/s - 15 m/s) / 3 s
Simplifying the equation:
a = 15 m/s / 3 s
a = 5 m/s²
Therefore, the acceleration of the car is 5 m/s².