1. Avon's boaT is 75 m from The base of a cliff , fleeing aT a speed of 5m/s .Tucson is aiming aT Avon's boaT , so mounTed a gun on The edge of The cliff fires a shell aT 40 m/s and hiTs Avon's boaT when iT has fled anoTher' 75 m . a) WhaT will be The angle above The horizonTal Tucson has To aim aT To hiT Avon's boaT? b) How high is The cliff ? c) WiTh whaT velociTy does The shell hiT The boaT