Question

9. A pressure of 10 MPa acts on an area of 0.3 cm? The
force acting on the area will be:
(1) 3000 N
(2) 30 N
(3) 3N
(4) 300 N​

Answer 1

Explanation:

9. A pressure of 10 MPa acts on an area of 0.3 cm? The

force acting on the area will be:

(1) 3000 N

(2) 30 N✔✔

(3) 3N

(4) 300 N

Answer 2

A pressure of 10 MPa acts on an area of 0.3 cm  The force acting on the area is equal to 3N.

Explanation:

• We already know that the pressure is equal to the force divided by the area. Therefore we can write that $P=\frac{F}{A}$.

• Now the force can be written as pressure multiplied by area or$P\times A$by the formula written before. Therefore we are left with $10 \times0.3.$.

• This is equal to the value of 3. Therefore the force which is acting on the area is equivalent to 3N.

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