Question

What is the average acceleration of the object over the first 4 seconds?

A
1 m/s2

B
2 m/s2

C
4 m/s2

D
8 m/s2

Answer 1

To determine the average acceleration of the object over the first 4 seconds, we need to use the formula:

average acceleration = change in velocity / change in time

The velocity of the object at the beginning of the 4 seconds is 0 m/s, and at the end of the 4 seconds, the velocity is 16 m/s. Therefore, the change in velocity is:

16 m/s - 0 m/s = 16 m/s

The change in time is:

4 seconds - 0 seconds = 4 seconds

Now, we can plug in the values:

average acceleration = 16 m/s / 4 seconds

= 4 m/s^2

Therefore, the average acceleration of the object over the first 4 seconds is 4 m/s^2. Answer C is correct.