Tuesday, July 10, 2007

Irodov Problem 1.2

Mean velocity is total distance by total time. Let the total distance traveled be d. The time taken to travel half the distance (d/2) at speed vo is d/(2vo). Now another d/2 distance remains to be traveled. Now let the time taken to travel this remaining distance be t. Then (t/2)v1 + (t/2)v2 = d/2. This means that t = d/(v1 + v2).

The total time traveled thus is, d/(2vo) + d/(v1 + v2). The total distance is d. Thus, the mean velocity is,


5 comments:

Nupur Kalita said...

Thanx a lot

Arindam Mohanta said...

Thanx to give the solutions

Anonymous said...

Thank you so so much.

Anonymous said...

thanks!!!!!!!!

Souvik Haldar said...

Thanks!