Two tall buildings are $30m$ apart. The speed with which a ball must be thrown horizontally from a window $150m$ above the ground in one building so that it enters a window $27.5m$ from the ground in the other building is

Q. Two tall buildings are $40\text{m}$ apart. With what speed a ball must be thrown horizontally from a window $145\text{m}$ above the ground in one building, so that it will enter a window $22.5\text{m}$ above the ground in the other ?
(Take $g=10m/s^2$)

Q. Two tall buildings are $40\text{m}$ apart. With what speed a ball must be thrown horizontally from a window $145\text{m}$ above the ground in one building, so that it will enter a window $22.5\text{m}$ above the ground in the other ?
(Take $g=10m/s^2$)

Q. Two tall buildings are $80m$ apart. The velocity with which a ball should be thrown horizontally from a window $95m$ above the ground in one building so that it will enter a window $15m$ above the ground in the second building is : ($g=10m/s^2$)

Q. Two tall buildings face each other and are at a distance of $180\text{m}$ from each other. With what velocity (in $\text{m/s}$) must a ball be thrown horizontally from a window $55\text{m}$ above the ground in one building, so that it enters a window $10.9\text{m}$ above the ground in the second building? (Take $g=9.8{\text{m/s}}^2$)