9th Class Science Gravitation and Floatation Question Bank 9th CBSE Science Floatation

  • question_answer
      Why is depression much more when a man stands on the cushion than when he lies down on it?

    Answer:

                                                When a man stands on a cushion then only his two feet are in contact with the cushion. Due to this, the weight of man falls on a small area of cushion producing a large pressure. This large pressure causes a big depression in the cushion. On the other hand, when the same man is lying on the cushion, then his whole body is in contact with the cushion. In this case, the weight of man falls on a much larger area of the cushion producing much smaller pressure. And this smaller pressure produces a very little depression in the cushion.


You need to login to perform this action.
You will be redirected in 3 sec spinner