A cannonball, mass 50 kg, is shot out of cannon at an angle of 75 degrees with respect to the horizontal. The initial speed is 10 m/s. the ball lands at the same height from which it began. IGNORE AIR DRAG. A) what is the maximum height of the cannonball? b) what is the total time in the air? c) obtain the velocity at t= 0.50 s. ( velocity is a VECTOR! Clearly define your coordinate system.?