HELLP WILL GIVE BRAINLIEST!! A helicopter is accelerating up into the air while it is also accelerating due north. Which statement about the forces acting on the
helicopter is true? (1 point)

O The drag on the helicopter is directed upward and to the south.

O The drag on the helicopter is directed downward and to the south.

O The drag on the helicopter is directed upward and to the north.

O The drag on the helicopter is directed downward and to the forth.

chemical properties of thing

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.