1. When the height of the release is equal to the height of landing the optimum angle of release is 45 degree.
2. When the height of release is greater than the height of landing as in a hammer throw, the optimum angle of release is less than 45 degree.
3. When the height of release is less than the height of landing as in a bunker shot in golf, the optimum angle of release is more than 45 degree.
