Final answer:
The car's acceleration is zero because its speed remained constant at 60 m/s over the 5 minutes, indicating no change in velocity.
Step-by-step explanation:
If a car is moving at a consistent speed of 60 m/s and maintains that speed for 5 minutes without changing direction, the car acceleration is zero. This is because acceleration is defined as the rate of change of velocity over time, and since the car's velocity does not change, there is no acceleration.
Acceleration is calculated using the formula a = (Vf - Vi)/t, where Vf is the final velocity, Vi is the initial velocity, and t is the time in seconds over which the velocity change occurs. In this case, Vf and Vi are both 60 m/s and the time interval does not matter since the change in velocity (ΔV) is zero, leading to an acceleration a = 0 m/s².