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Pressure

A force exert...

Question

A force exerts a pressure of $45 N / m^{2}$ when it acts on an area of $10 m^{2}$ . Calculate the total force

A

4.5 N

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B

450 N

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C

45 N

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D

.45 N

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Solution

The correct option is A $450 N$
The pressure is given as Force/Area.
In this case, the area = $10 m^{2}$ and the presure acting is $45 N / m^{2}$ .
Therefore, $F o r c e = P r e s s u r e \times A r e a = 45 N / m^{2} \times 10 m^{2} = 450 N$ .
Hence, the total force is 450 N.

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