A point P is taken to be origin of time and position Two points Q and - Physics - Units And Measurements

Question

A point P is taken to be origin of time and position
Two points Q and R are situated on a straight line passing through
P The positions of Q and R are 8m and 12m respectively while the
instant at which the body reach these points are 3s and 5s WHAT IS
THE SPEED OF THE BODY?????

Roopesh Singh · Accepted Answer

Hi,
Here in this question it is given that the position of point Q
and R are 8m and 12m respectively and corresponding times are 3sec
and 5sec
Now the line joining Q and R is a straight line passing
through the origin P This tells us that the velocity of the body is
constant
Therefore, speed is given by
<img height="64" width="268" src=
"https://s3mn%20mnimgs%20com/img/shared/userimages/mn_images/image/3(159)%20png"
alt="">
Plot the graph between distance and time for better
understanding
Hope this helps,
Good luck

A point P is taken to be origin of time and position . Two points Q and R are situated on a straight line passing through P . The positions of Q and R are 8m and 12m respectively while the instant at which the body reach these points are 3s and 5s . WHAT IS THE SPEED OF THE BODY?????