Hi everyone, I would gladly appreciate if you could please help me with my physic homework. Please insert the image if option there but if not there please tell me what to draw. The question is: 17. A machine is often designed when the work required to move an object needs a force larger than the person can exert. Your task is to lift a 400-kg boulder from the ground and place it on a platform 3.0 m high.

a) Make a sketch of a machine (or a combination of machines) that use a force provided by one person to accomplish this task.

b) Label the input and output force(s) on your sketch.

Okay

Explanation:

Gaggagage desk s

Explanation:

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.