Final answer:
The car increasing its speed from 45mph to 60mph is an example of acceleration in physics.
Step-by-step explanation:
The car increasing its speed from 45mph to 60mph is an example of acceleration in physics. Acceleration is the rate at which the velocity of an object changes over time. In this case, the car's velocity increased by 15mph over a certain period of time.
The rate at which the velocity changes can be calculated by dividing the change in velocity by the time taken. In this case, the change in velocity is 15mph and the time taken is not provided. So, to determine the acceleration, we need to know the time it took for the car to increase its speed.
If you have the time, you can use the formula:
Acceleration = (Change in velocity) / (Time taken)
Once you have the value of acceleration, you can analyze the motion of the car more accurately.