A fly was sitting on a block. A man draws a circle of the area ${2 c m}^{2}$ , enclosing the fly. He then applies a force of 20N over the area. Calculate the pressure on that area.

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Solution

The correct option is C
Pa

The area on which the pressure is calculated is ${2 c m}^{2}$ , and the force applied is 20N in order to kill the fly.

So, pressure = $\frac{F o r c e}{A r e a}$ = $\frac{20 N}{2 \times 10^{- 4} m^{2}}$ = $10^{5}$ Pa.

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A fly was sitting on a block. A man draws a circle of the area 2cm2, enclosing the fly. He then applies a force of 20N over the area. Calculate the pressure on that area.

The correct option is C Pa The area on which the pressure is calculated is 2cm2, and the force applied is 20N in order to kill the fly. So, pressure = ForceArea= 20 N2×10−4 m2 = 105 Pa.

A fly was sitting on a block. A man draws a circle of the area ${2 c m}^{2}$ , enclosing the fly. He then applies a force of 20N over the area. Calculate the pressure on that area.

The correct option is C
Pa

The area on which the pressure is calculated is ${2 c m}^{2}$ , and the force applied is 20N in order to kill the fly.

So, pressure = $\frac{F o r c e}{A r e a}$ = $\frac{20 N}{2 \times 10^{- 4} m^{2}}$ = $10^{5}$ Pa.