Two identical mass objects are launched with the same speed from the same starting location. Object 1 is launched at an angle of 30° above the horizontal while Object 2 is launched at an angle of 60° above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground.
Which object returns to the starting height with the greatest speed?
(a) Object 1 since it keeps a lower trajectory.
(b) Object 2 since it is in the air for a longer time.
(c) Object 2 since there is more work done on the object during flight
(d) The speeds are the same.
(e) It cannot be determined without more information.