More Physics Help please.... i need help with this 2 physics question..can someone help me please....thank you very much...which equation should i use... 1. A hot-air balloon is rising straight up with a speed of 5.00 m/s. A ballast bag is released from rest relative to the balloon when it is 2.95 m above the ground. How much time elapses before the ballast bag hits the ground? 2.After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 66.7 m horizontally from the end of the ramp. His velocity, just before landing, is 18.3 m/s and points in a direction 32.2 degrees below the horizontal. Neglecting air resistance and any lift that he experiences while airborne, find (a) the magnitude and (b) the direction of his initial velocity when he left the end of the ramp.