Kinesiology, Biomechanics and Sports — Physical Education STD 12 Commerce — Question

Projection Height Relevant to the Landing Surface: If the height of the projection and the landing surface is equal, then release the object at the angle of 45°. If the level of the landing surface is more than the height of projection, increase the angle of projection, which means it should be more than 45°. If the level of landing surface is less than the height of projection, decrease the angle of projection, which means less than 45°. So, the horizontal distance of an object depends on the relevancy of projection height and landing surface. For example, a golfer hitting a ball off the top of the hill would hit it farther than a golfer at the bottom of the hill. The ball will stay in the air longer and thus will have a greater chance to gain distance. In javelin, to gain more distance, throwers hold the javelin up higher to create a greater height of release.