눈이 쌓인 스키 슬로프가 수평과 35.0°의 각도를 이루고 있 다. 스키 점퍼가 슬로프에 낙하할 때, 눈덩이 하나가 튀어 오르는데, 그림 P3.26과 같이 최대 변위는 연직 방향과 16.07
를 이루고 크기가 1.50 m이다. 이 최대 변위의 (a) 표면에
평행한, (b) 표면에 수직인 성분을 각각 구하라.​

mass and volume are the answers you are looking for

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.

answer: 31, 5556. 952 seconds

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.