Because it is how fast it goes and it depends on the speed
You didn't attach the figure. Your text is incomplete. And you never got around to asking a question. Other than that, we're on it.
Answer:
Explanation:
1) No take-off possible
2) The downward force is greater than the upward force.
3) 2000 + 950 = 2950 N upward
Do you know what's this unit called? it may help figure out how to do it.