Two ball buildings are 40 m apart. With what speed must a ball be thrown horizontally from a window 145m above the ground in one building, so that it will enter a window 22.5 m above the ground in other ?

Two ball buildings are 40 m apart. With what speed must a ball be thro

1.	Two ball buildings are 40 m apart. With what speed must a ball be thrown horizontally from a window 145m above the ground in one building, so that it will enter a window 22.5 m above the ground in other ?
Answer» 4m/s 10 m/s 8 m/s 16 m/s Answer :C