1.

What mean by average velocity.

Answer»

velocity means the total displacement divided by the total time taken.         this is different from the average speed as velocity is a vector.  when we TAKE average we need to take into account the directions of velocity at different times.     if an object travels for time t1  with a UNIFORM velocity   and for time T2  with a uniform velocity  of     then  the average velocity  is      if a person travels for  1 hour  covering a distance of 10 km in a straightline towards the North and then returns along the same STRAIGHT line after 1 hour,  then        v1 vector is 10kmph  towards North.     v2 vector is  10 km ph towards SOUTH.  average velocity is  0.    Average velocity is the net displacement divided by the time interval.



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