Physics
Use Newton’s second law of motion to explain the following:
An athlete prefers to land on sand instead of hard floor while taking a high jump.
Laws of Motion
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Answer
When an athlete lands from a height on a hard floor, he may hurt his feet because his feet comes to rest almost instantaneously (i.e., in a very short time) so a very large force is exerted by the floor of his feet.
On the other hand, when he lands on sand, his feet push the sand for some distance, therefore the time duration in which his feet comes to rest, increases.
As a result, the force exerted on his feet decreases and he is saved from getting hurt.
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