Aman with mass m1 = 53.0 kg stands at the left end of a uniform boat with mass m2 = 172.0 kg and a length l = 2.5 m. let the origin of our coordinate system be the man’s original location as shown in the drawing. assume there is no friction or drag between the boat and water.. after the man walks to the right edge of the boat, what is the new location the center of the boat? . now the man walks to the very center of the boat. at what location does the man end up?

d) physical means can be used to separate the components of air.

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.