Final answer:
The car's average acceleration from rest to 96 km/hr in 2.2 seconds is 12.12 m/s², after converting the final velocity to meters per second.
Step-by-step explanation:
To calculate the average acceleration of a car that accelerates from rest to 96 km/hr in 2.2 seconds, we must first convert the final velocity to meters per second (m/s) since acceleration is typically measured in m/s².
The conversion factor is 1 km/h = 0.27778 m/s, so 96 km/h is equivalent to 96 × 0.27778 m/s, which equals 26.67 m/s.
Now, using the formula for average acceleration, a = (Δv) / (Δt), where Δv is the change in velocity and Δt is the change in time, we find that:
a = (26.67 m/s - 0 m/s) / 2.2 s = 12.12 m/s².
So, the car's average acceleration is 12.12 m/s².