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 horizontal distance R from the initial vertical position. At what height `h_(2)` will the second ball be at this instant? Neglect any frictional resistance of air and the effect of any induced charge on the ground.

Options

A. `h_(1) + h_(2) - g ((l)/(v))^(2)`
B. `h_(1) -h_(2) - g ((l)/(v))^(2)`
C. `h_(1) +h_(2) - g ((l)/(v))^(1//2)`
D. `(h_(1) + h_(2))/(2) - g ((l)/(v))^(2)`

Answer

A