Answer:
The acceleration of the particle at time t = 0 seconds is:
4 feet per square second.
i.e. 4 ft/s²
Explanation:
We are given a position function in terms of the time t as:

Now, we are asked to find the acceeleration of the particle at time t = 0 seconds.
We know that the acceleration of a particle is given by:

where v is the velocity of the particle which is calculated by:

Hence, we get:

i.e. the acceleration of the particle is the double derivative of the position.

and

i.e.
