Question

physics question a body travels from A to B at 40 metre per second hand from B to a at 60 M per second find the average speed and average velocity give me answer

Answer 1

let the distance between points A and B be 'd' metres.
velocity from point A to B= 40 m/s
velocity from B to A = 60 m/s
time taken to reach B from A= d/40
time taken to reach A from B =d/60

average speed =total distance covered / total time taken

total distance covered = d +d =2d
total time taken= d/40 + d/60= d/24

thus, average speed = 2d/(d/24)
= 48m/s

average velocity is the rate of change if position.
as the displacement is zero
thus, average velocity =0