Answer:

the acceleration of the truck is 2 m/s^2.

Explanation:

The acceleration of the truck can be found using the formula:

acceleration = (final velocity - initial velocity) / time

Where:

final velocity = 6 m/s

initial velocity = 4 m/s

time = 2 s

Plugging in the values, we get:

acceleration = (6 m/s - 4 m/s) / 2 s

acceleration = 2 m/s^2

Therefore, the acceleration of the truck is 2 m/s^2.