A cart that is rolling at a constant velocity on a level table fires a ball straight up out of a vertical tube.

The rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Some key features of acceleration are-

Any procedure where the velocity varies is referred to as acceleration.
There are just two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed as well as a direction.
No matter how quickly you're moving, if you're not altering your direction or speed, you can't possibly be accelerating.
In a car, accelerating may be accomplished by applying the gas pedal or the brakes, both of which would result in changes in speed.
However, you could also turn by turning the steering wheel, which would reverse your momentum. Given that they alter velocity, any of them would be seen as an acceleration.

The formula of acceleration is -

[tex]a=\frac{\Delta v}{\Delta t}=\frac{v_{f}-v_{i}}{\Delta t}[/tex]

[tex]v_{f}[/tex] is the final velocity

[tex]v_{i}[/tex] is the initial velocity

Δt is total time between both velocities.

To know more about the acceleration, here

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The complete question is-

A cart that is rolling at a constant velocity on a level table fires a ball straight up out of a vertical tube. Does your answer change if the cart is accelerating in the forward direction? If so, how?