Which of the following attention-focusing instructions is likely to lead to the best long-jump performance? Multiple Choice focus on swinging the arms as high as possible during the jump focus on jumping as far from the start line as possible focus on extending the knees as forcefully as possible at take-off focus on extending the whole body at take-off
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The question asks which instruction will lead to the best long jump performance. Each option focuses on a different aspect of the jump. Show more…
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Ronald P.
The standing vertical jump is a good test of an athlete's strength and fitness. The athlete goes into a deep crouch, then extends his legs rapidly; when his legs are fully extended, he leaves the ground and rises to his highest height. It is the force of the ground on the athlete during the extension phase that accelerates the athlete to the final speed with which he leaves the ground. A good jumper can exert a force on the ground equal to twice his weight. If his crouch is 55 cm deep, how far off the ground does he rise?
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