1.which of the following is an example of work? a. tim worked hard to carry a box of books across a room b. a scientist works in the laboratory c. sam and rachel worked hard to push the car but it did not move d. joann did work on a box when she pulled it across the floor 2.joe carries his 5 kg cat 3 m horizontally across the living room. what is the net work done on the cat? a. 0j b. 15j c. 150j d. 180j 3.which of the following is associated with an object in motion? a. potential energy b. nonmechanical energy c. kinetic energy d. elastic potential energy 4.which of the following is associated with an object due to its position? a. potential energy b. positional energy c. total energy d. kinetic energy 5.what is kinetic energy of a 1000 kg truck moving at 32.0 m/s? * a.1.2 x 10⁵ j b.3.21 x 10⁵ j c.5.12 x 10⁵ j d.6.34 x 10⁵ j

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

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.