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Answer the following in brief:
What is the reason for using sand beds or landing mats in high jump competitions?
Answer variants:
magnetism
volume
injury
velocity
time
acceleration
force
When the athlete falls onto a soft mat or sand, the taken for their velocity to reduce to zero is increased (compared to falling on a hard surface). By Newton's second law, for the same change in , a longer time results in a smaller . A smaller acceleration means a smaller is exerted on the athlete's body. This significantly reduces the risk of upon landing.
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