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ACalculate the total force of the atmosphere acting on the top of a table that measures 1.5 m 2.2 m.

N

BWhat is the total force acting upward on the underside of the table?

N

Verified Answer :

scme1702

A)
Atmospheric pressure is 101325 Pa.
Pressure = Force / Area
Area of table = 1.5 x 2.2
= 3.3 m²
Force = 101325 x 3.3
= 334 kN

B)
According to Newton's third law, every action has an equal and opposite reaction. Thus, the upward force is equal to the force acting downward on the table and is being balanced. The force is 334 kN in the upward direction.

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