Question

• 1 point

if an object moves with constant acceleration, its velocity must ........
always decreases
be constant also
change by the same amount each second
change by varying amounts depending on its speed
! this is a required question

Explanation:

Acceleration is defined as the rate of change of velocity, mathematically given by $a = \frac{\Delta v}{\Delta t}$. For constant acceleration, the change in velocity $\Delta v$ over equal time intervals $\Delta t$ is constant. If $\Delta t = 1$ second, $\Delta v = a$, a fixed value. The first option is wrong because acceleration can be positive (increasing velocity). The second option is wrong because constant velocity means zero acceleration. The fourth option describes non-constant acceleration.

Answer:

change by the same amount each second