To make a piece of paper float horizontally in air, we allow air to flow over the upper surface of the paper, but not below its lower surface. Why?

To make a piece of paper float horizontally in air, we allow air to fl

1.	To make a piece of paper float horizontally in air, we allow air to flow over the upper surface of the paper, but not below its lower surface. Why?
Answer» SOLUTION :If AIR is allowed to FLOW HORIZONTALLY over the upper surface of the paper, the velocity of air above the paper will be completively higher than that below it. According to Bernoulli.stheorem, the lower surface of the paper will experience a higher pressume than the upper surface. the resultant upward pressure keeps the piece of paper FLOATING horizontally in air.