Answer:
P=3647934.3 Pa
Explanation:
We use the formula for pressure inside a fluid:
Where is the pressure at its surface (the atmospheric pressure in our case),
its density (the density of seawater in our case), <em>g</em> the acceleration of gravity (which is given in our case, and known) and <em>h</em> the depth at which we want to know the pressure (which is given in our case). For our case then we have:
Before going to answer this question, first we have to understand centripetal force.
The centripetal force is the force which is required to keep the body along its circular path.The direction of the force is along the radius and towards the centre.
Here m is the mass of the body,v is the velocity of the body and r is the radius of the circular path.
When a body moves in a circular path,its velocity at any point is the tangent drawn at that point.
As centripetal force acts along the radius, it must be perpendicular to the velocity of the body.
Hence the correct answer to the question is- It acts perpendicular to the velocity and is directed toward the center of the circle.