Question

In the simulation above, as the projectile travels downward, how does the vertical velocity change?
Question 10 options:

Vertical velocity decreases.

Vertical velocity is zero.

Vertical velocity remains the same.

Vertical velocity increases.

Answer 1

this kind of depends on sign convention, but as the projectile goes downward, it's being accelerated by gravity, so the velocity will become more and more negative, which technically means it's decreasing even though it's getting faster

Answer 2

@Shadow would you mind taking a look at this? I think having a second opinion is good b/c I don't want to accidentally mislead this person >>

Answer 3

there isnt a simulation

Answer 4

Yeah direction is constant but magnitude changes due to gravity, thus it is accelerating.

1. It can't be decreasing since the velocity and force of gravity are in the same direction.
2. If something is moving up/down, then it has both direction and magnitude, and can't be zero
3. If something is moving vertically then the force of gravity is relevant, and the velocity would either increase or decrease
4. As discussed in one, it can't be decreasing since it's falling in the same direction as the force of gravity.

@hallm pretty sure you got this one (: