Question

Erik is traveling along a straight highway at a speed of 25 m/s. The driver steps on the

gas pedal, and 3.2 seconds later, the car's speed is 45 m/s. Find its average
acceleration

Answer 1

To find the average acceleration, you can use the formula: average acceleration = change in velocity / change in time. In this case, the average acceleration of the car is 6.25 m/s².

Step-by-step explanation:

To find the average acceleration, we can use the formula:

average acceleration = change in velocity / change in time

In this case, the change in velocity is the final velocity minus the initial velocity, which is 45 m/s minus 25 m/s, giving us 20 m/s. The change in time is 3.2 seconds. Substitute these values into the formula:

average acceleration = (20 m/s) / (3.2 s) = 6.25 m/s²

Therefore, the average acceleration of the car is 6.25 m/s².