Here's how to calculate the acceleration: 1. **Identify the knowns:** * Initial velocity (u) = 0 m/s (since the car starts from rest) * Distance (s) = 40 m * Time (t) = 10 s 2. **Choose the appropriate kinematic equation:** We can use the equation: s = ut + (1/2)at² 3. **Substitute the values and solve for acceleration (a):** * 40 = (0)(10) + (1/2) * a * (10)² * 40 = 0 + 50a * a = 40 / 50