First slide
Rectilinear Motion
Question

A body falls freely from a height  ‘h’, its average velocity when it reaches the earth is ………..

Easy
Solution

For a freely falling body from a height ‘h’ initial velocity u=0 
Time of fall  t=2hg
Average velocity  =TotaldispalcementTotaltime

  =ht

=h2hg=hg2
 

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