Fourth year of secondary education
Pressure (I)
E. Vallo - J.Villasuso
 Pressure
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Problems 9 / 9

9.- Calculate the total support surface of the tyres of a car with a mass of 1500 kg. with a pressure of "2.2 kg"'- in everyday language-. 

N.B. Look in the units section for the meaning of 2.2 kg. Solve the exercise in your notebook and check the solution dragging the mouse over the "solutions" control. Compare your way of solving the problem with the explanation in "Answer".

169, 8 cm2                                                                    
What is pressure? How does it work?
Units
Hydrostatic pressure
Mathematical expression
The pressure increases the deeper you go in liquids
Which goes the furthest?
A little goes a long way!
Communicating vessels
Syphons
Pascal's Law
The Law
The hydraulic press
Hydraulic brakes: drum brakes
Manometers
Problems
Evaluation