If the velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration what's the average velocity of the body?

Average velocity of the body is 21.5 m/s

Explanation:

It is given that,

The velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration.

The initial velocity of the body, u = 13 m/s

The final velocity of the body, v = 30 m/s

It is moving under constant acceleration. The sum of initial velocity and final velocity divided by 2 is called the average velocity of the body. It is given by :

Hence, the average velocity of the body is 21.5 m/s

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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr