Examine the information. a truck accelerates 3 km/h/s south. which option correctly describes the truck’s acceleration?
a. every second the truck’s position increases by 3 km to the south.
b. every hour, the truck’s velocity increases by 3 km/s to the south.
c. every second, the truck’s position increases by 3 km/h to the south.
d. every second, the truck’s velocity increases by 3 km/h to the south.

d. Every second, the truck’s velocity increases by 3 km/h to the south.

Explanation:

Acelleration can be defined as change of velocity over change of time.

That's why if we say:  "A truck accelerates 3 km/h/s south."

We are saying that the acceleration of the truck variate 3Km/h wich is  velocity of the truck, and it variates every second and also its direction is south.

car a and b are moving in opposite directions

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