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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Amit kumar jha Kumar
I solved this problem with complete elaboration and concepts . please find the attachments as an image.
can you please tell me why h1 is added for calculating height of ball in girls hand? that is h2
because general kinematics equation is X= Xₒ + ut + 1/2 gt² .. and ball is returning from point of impact which is at a height of h ₁ not from origin