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Give explanations : Skiers use long...

Give explanations :
Skiers use long flat skis to slide over the snow.

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The surface area of a ski is almost 20 times as large as that of the sole of shoes. Hence, on skis, a person is able to exert pressure on each square centimetre of the surface area of the snow which is almost 20 times as small as that when he walks with shoes on.
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S CHAND IIT JEE FOUNDATION-FORCE AND PRESSURE -Question Bank-2(a)
  1. Give reasons for the following: The tips of the cutting tools are mad...

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  2. Give reasons for the following: The feet of an elephant are large.

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  3. Give explanations : Skiers use long flat skis to slide over the s...

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  4. Give reasons for the following: A man walking on the street slips on ...

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  5. Give reasons for the following: The soles of our shoes wear out gradu...

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  6. Give reasons for the following: It is difficult to walk on well polis...

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  7. A and B are two objects with masses 10 kg and 40 kg respectively. Then

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  8. A steel chain consists of 50 links connected to each other. The chain ...

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  9. A long chain having 100 identical steel links is to be pulled from its...

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  10. Pressure cannot be measured in

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  11. When the force remains constant and area is less, the pressure will

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  12. When depth increases the pressure ?

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  13. When a constant force is applied to a body, it moves with unifrom

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  14. A piece of wood is floating in water. When the temperature of water ri...

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  15. The bottom of a dam is made thick as:

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  16. The buoyant force depends on the

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  17. A body of wood has a weight W and volume V. The apparent weight of thi...

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  18. Where would the pressure of sea water be maximum?

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  19. If the force remains constant and the area is doubled, then the pressu...

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  20. Two objects losing the same weight when immersed in water must have th...

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