The velocity of an object increases from 5.0 m/s to 15 m/s in 2.0 s. What is the average acceleration of the object?

15m/s - 5m/s = 10m/s

10m/s / 2.0s = 5 m/s <----

Looks good to me.

To find the average acceleration of an object, you need to use the formula:

Average acceleration = (final velocity - initial velocity) / time

In this case, the final velocity is 15 m/s, the initial velocity is 5 m/s, and the time is 2.0 s.

So, plugging in the values into the formula, we have:

Average acceleration = (15 m/s - 5 m/s) / 2.0 s

Simplifying further:

Average acceleration = 10 m/s / 2.0 s

Final calculation:

Average acceleration = 5 m/s

Therefore, the average acceleration of the object is 5 m/s.