turner's treadmill starts with a velocity of -3.4 m/s and speeds up at regular intervals during a half hour workout. after 26 minutes the treadmill has a velocity of -7.6

Answer 1

To find the acceleration of the treadmill, we can use the formula:

acceleration = change in velocity / time

In this case, the change in velocity is:

(-7.6 m/s) - (-3.4 m/s) = -7.6 m/s + 3.4 m/s = -4.2 m/s

The time interval is:

26 minutes = 26 * 60 seconds = 1560 seconds

So, the acceleration of the treadmill is:

acceleration = (-4.2 m/s) / (1560 s) = -0.00269 m/s²