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A cushioned bed or a sand bed is used in...

A cushioned bed or a sand bed is used in the athletic event high jump. Why?

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It increases the time of impact. The athlete is saved from injury.
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PRADEEP-FORCES AND LAWS OF MOTION-ORAL TESTING
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  4. The rate of change of ……..of a body……is ………Proportional to the ……..app...

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  5. A cushioned bed or a sand bed is used in the athletic event high jump....

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  6. The velocity of a body is doubled. What happens to its momentum?

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  7. When the resultant of forces acting on a body is not Zero, what are th...

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  8. Is some force required to move a body uniformly along a circle?

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  9. What are the units of linear momentum?

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  10. Newton's first law……..force and Newton's second law gives us a …..of f...

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  11. Which law tells us about the nature of force?

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  12. Are the force of action and reaction always equal in magnitude?

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  13. A boat is pushed away from the river bank when a sailor jumps from the...

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  15. Why should a gun be held tightly against the shoulder, while firing?

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  16. Why is it difficult to walk on a slippery road?

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  17. What is meant by recoiling of a gun?

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  18. What is the principle of working of a rocket ?

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  19. What is the linear momentum of the rocket and escaping gases on firing...

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