In a well water is filled up to the height of 6 meters. calculate the pressure given by the water at the bottom of the well

The pressure given by the water at the bottom is 58,800 Pa

Explanation:

Pressure Exerted by a Column of Liquid

The pressure P exerted by a column of liquid of height h and density ρ is given by the hydrostatic pressure equation:

P = ρgh

Where ρ is the density of the liquid, g is the acceleration of gravity g=9.8m/s^2, and h is the height of the column of liquid.

The height of water in a well is h=6 m. The density of water is a known quantity:

Calculating P:

P = 1,000*9.8*6

P = 58,800 Pa

The pressure given by the water at the bottom is 58,800 Pa

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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