Some enterprising physics students working on a catapult decide to have a water balloon ﬁght in the school hallway. The ceiling is of height 3.3 m, and the balloons are launched at a velocity of 9.7 m/s. The acceleration of gravity is 9.8 m/s2 . At what angle must they be launched to just graze the ceiling?

Question

anonymous · Answer

There is not enough information. Unless you are talking about the velocity in the y direction.