WHY is it that in some questions of relative motion we use pythagorus theorem while in SOME OTERS we just simply add the vel.s ??

Asked by komal tanwar | 29th Oct, 2013, 03:10: PM

Expert Answer:

If the two velocities act in one dimension only, then we either add/subtract the two to get the relative velocity. And if the two velocities act perpendicular to each other (i.e. in a plane), we use pythagorus theorem to find the relative velocity.
 
However, the general formula for the relative velocity is
 

Answered by  | 30th Oct, 2013, 12:04: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.