Question

If it takes time "T" to reach the ground then, ( H=0.5 g T^{2} )
( mathrm{T}=sqrt{(} 2 mathrm{H} / mathrm{g}) )
If it takes time "t" to travel first half of the journey then, ( 0.5 H=0.5 g t^{2} )
( mathrm{H}=mathrm{gt}^{2} )
( mathrm{t}=sqrt{(} mathrm{H} / mathrm{g}) )
Time taken to cover second half of the journey is ( =T-t ) ( =sqrt{(} 2 mathrm{H} / mathrm{g})-sqrt{(} mathrm{H} / mathrm{g}) )
( =sqrt{(} mathrm{H} / mathrm{g}) times(sqrt{(} 2)-1) )

# 19. A body is dropped from a height H. The time taken to * cover second half of the journey is 2H o 2H 1 (4) ve yg x rype. 32-1)

Solution