1. The problem statement, all variables and given/known data An object is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a maximum height of 5.75m, at What velocity was it thrown? a= -9.81 m/s h= 5.75 m I know that velocity is the one that I need to solve but I'm kinda finding it hard for myself to cope up how to solve for the time because I know that once I figure out the time, I would easily be able to solve for the velocity 2. Relevant equations a= Vf-vi/t t=0-vi/a t= -vi/a 3. The attempt at a solution a= Vf-vi/t t=0-vi/a t= -vi/a T= -sin(30/-9.81 T=0.05s I know I probably used the wrong solution but i'm running out of option. I tried googling it but I can't find an answer that I could actually grasp in my mind. I have a quiz tomorrow and I'm afraid there might be a question like this and I might have a hard time figuring it out if I don't learn it by tonight. I hope you guys can help me. Sorry for the messed up format because I'm not really used to the settings here in forums :).