Question

If persons A and B are moving away from the earth’s surface at a location on the sea, person A is moving towards the earth’s centre and person B away from it. Then, the pressure experienced will be

Answer 1

The pressure experienced will be higher for A and lower for B.

For any body the pressure experienced by it is the weight per unit area of the particle above it.

For A ,

• It is going towards the center of the earth through sea .

• In sea, it is the weight per unit area of the water above A.
• As A goes deeper and deeper, amount of water above his head increases.
• Therefore, weight of water also increase.
• This further increases the pressure of water above A.

For B,

• It is going towards space.
• In air , weight of air molecules above B will exert the pressure.
• As B goes upper, amount of air molecules above him will decreases.
• Therefore,  smaller weight will be acting on B.
• Hence pressure experienced by B will also be smaller.