Two small balls having the same mass and charge and located on th… - Vidyadip

Question

Two small balls having the same mass and charge and located on the same vertical at heights $h_1$ and $h_2$ are thrown in the same direction along the horizontal at the same velocity $v.$ The first ball touches the ground at a distance l from the initial vertical. At what height $H_2$ will the second ball be at this instant ? The air drag and the effect of the charges induced on the ground should be neglected.

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Answer

$\text{h}_1+\text{h}_2-\text{g}\Big(\frac{\ell}{\text{V}}\Big)^2$

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