Mohan travels at 20m/s from home and returns back at 25m/s.Find his average velocity for the entire journey?

9 answers

22.222
Oops. My bad. No displacement, no average velocity. Trick question, it's zero.
mohan travels at 20m/s from home to market and returns at 25m/s find his average velocity for the entire journey
Velocity=displacement/thine taken
In the above case Mohan has returned to its initial point after traveling, so since displacement is 0 (zero), velocity will also be 0 (zero).
QUESTION=Mohan travels at 20m/s from home and returns back at 25m/s.Find his average velocity for the entire journey
ANSWER=Initial velocity=20m/s
Final velocity=25m/s

average velocity=initial velocity+finalvelocity upon 2
average velocity=20+25upon2 45upon2=22.5
Initial velocity= 20m/s
Final velocity = 25m/s
Let the displacement from home to market be x metre.
So, total displacement = x+x= 2x m
Time taken to travel from home to market = x/20 s
Time taken to return back= x/25 s
. : total time taken =(x/20+x/25)s=9x/ 100
Thus; Average velocity = total displacement/ total time taken
=) 2x ( total displacement )/ (9x/100)(time taken)
=) 2x÷9x/100
=)2x × 100/ 9x
=)200/9 (x got cancelled)
=) 22.222222222......metre
=) 22.3 metre(approx.)
Verified answer
Average velocity=0
Explanation
Mohan travelled from home to market and also returns to his home.So dispalcement will become 0.
Average velocity=Displacement/total time
AV.=0
This is a very bad question ever Infact tomorrow I will fail in physics I am sure.. HAIAISHAKAKAK
We know avg velocity is displacement 1+displacement 2/ Time 1 + time 2
Here as he returns to his home from market it is a zero displacement....
Hence anything divided by zero is a zero