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प्रश्न
Use Newton's second law to explain the following:
We always prefer to land on sand instead of hard floor while taking a high jump.
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उत्तर
We always prefer to land on sand instead of hard floor while taking a high jump because sand increases the time of contact.
As FX t = m ( v - u ) and our change in momentum is constant so if time increases then force experienced would decrease.
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